Best Free System Utilities
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Compare the Top Free System Utilities as of October 2025
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What are Free System Utilities?
System utilities are specialized software tools designed to maintain, manage, and optimize computer systems. They assist with essential tasks such as file management, disk cleanup, backup, performance monitoring, and troubleshooting. Unlike applications built for end-user productivity, system utilities work behind the scenes to improve efficiency, stability, and security of the operating system. They can be built into the OS or installed as third-party tools to extend functionality. By automating maintenance and diagnostic tasks, system utilities help prolong system lifespan and ensure smooth day-to-day operations. Compare and read user reviews of the best Free System Utilities currently available using the table below. This list is updated regularly.
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1
Control D
Control D
Control D is a customizable DNS filtering and traffic redirection platform that leverages Secure DNS protocols like DNS-over-HTTPS, DNS-over-TLS and DNS-over-QUIC, with support for Legacy DNS. - Block malicious threats - Block unwanted types of content network wide (ads & trackers, IoT telemetry, adult content, socials, and more) - Deploy in minutes on fleets of devices using RMM - Manage clients using sub-organizations - Gain visibility on network events and usage patterns, with client level granularity - Re-route traffic via proxies (through DNS) for improved privacy and security - Enjoy superior UX and simplicity Think of it as your personal Authoritative DNS resolver for the entire Internet that gives you granular control over what domains get resolved, redirected or blocked.Starting Price: $2/month -
2
Kasm Workspaces
Kasm Technologies
Kasm Workspaces streams your workplace environment directly to your web browser…on any device and from any location. Kasm uses our high-performance streaming and secure isolation technology to provide web-native Desktop as a Service (DaaS), application streaming, and secure/private web browsing. Kasm is not just a service; it is a highly configurable platform with a robust developer API and devops-enabled workflows that can be customized for your use-case, at any scale. Workspaces can be deployed in the cloud (Public or Private), on-premise (Including Air-Gapped Networks or your Homelab), or in a hybrid configuration.Starting Price: $0 Free Community Edition -
3
Filerev
Filerev
Use the Filerev app to organize Google Drive and reduce storage costs. The Duplicate File Finder quickly shows all duplicates in Google Drive without downloading all of your files. The Storage Analyzer lets you browse your folders by size in Google Drive. You can also view your Google Drive files in different categories such as: hidden / orphaned files, large files, empty files, empty folders, large folders, old files, temporary files, files by extension. Every category includes powerful filters and the ability to bulk delete your files in Google Drive. Plus, there are charts and graphs to help you quickly see how your storage space is being used and the number of files and specific types of files or folders that are consuming the most space. You can get started for free to see what is consuming your Google Drive storage space and quickly clean up the clutter.Starting Price: $4/month/user -
4
LogicalDOC
LogicalDOC
LogicalDOC helps organizations around the world gain complete control over document management. Focusing on business process automation and fast content retrieval, this premier document management system (DMS) allows teams to create, collaborate, and manage large volumes of documents and stores valuable company data in a centralized repository. System features include a drag-and-drop document upload, forms management, optical character recognition (OCR), duplicate detection, barcode recognition, event logging, document archiving, integrated document workflow, and so much more. Schedule a free, no obligation, one-on-one demo today. -
5
Weavy
Weavy
The complete in-app collaboration API and SDK. Add contextual activity feeds, chat, and document collaboration directly into your apps to increase user engagement, improve in-app retention, and reduce customer churn. All Weavy features include integrations to the third party tools your users are already familiar with: add capabilities for Zoom and Teams video conferencing, Google Drive, Dropbox, or Box file sharing, document sync and versioning contextually inside your app. Weavy allows app developers to quickly add the features that users need to be productive and interactive, directly within the app environment. With our SDK and APIs, you can deploy chat, feeds, and document sync in a matter of days, not months, and at a fraction the cost to build in-house. Focus on your core product while simultaneously adding functionality that makes your user experience not only better, but increases user engagement and dependency on your app.Starting Price: $0/Month -
6
GoLogin
GoLogin
GoLogin is a privacy browser for running multiple accounts on any platform. It protects accounts from being flagged or blocked on even the most sophisticated websites - Google, Facebook, Amazon and others. For an end user, it's just like Chrome - but able to safely run separate online identities. This opens unlimited opportunities for commercial use. Marketing agencies, affiliates and advertisers all around the world successfully run and share accounts from one device with no verifications, suspensions or flags. Best For: Marketing agencies - Affiliate marketing teams - SMM/Brand agencies - Advertising agencies - Real estate agents - E-commerce managers - Dropshippers - Web scrapers - Crypto enthusiastsStarting Price: $0 per month -
7
OnlineConvertFree
OnlineConvertFree
OnlineConvertFree provides file and document conversion tools. At present, the service interface is available in 15 languages. Every day the service is used by tens of thousands of the users. The file conversion service onlineconvertfree.com has one of the largest lists of supported formats. Prior to the update, the service worked only with the document files (70+ formats), images (120+ formats), audio (15 formats) video (32 formats) , e-books, archives, etc. All 1500+ directions of conversion are available to the users for free. -
8
Google
Google
Our mission is to organize the world's information so that everyone can access and use it. Every time you search, there are thousands, sometimes millions, of webpages with helpful information. How Google figures out which results to show starts long before you even type, and is guided by a commitment to you to provide the best information. Even before you search, Google organizes information about webpages in our Search index. The index is like a library, except it contains more info than in all the world’s libraries put together. In a fraction of a second, Google’s Search algorithms sort through hundreds of billions of webpages in our Search index to find the most relevant, useful results for what you’re looking for. To help you find what you’re looking for quickly, Google provides results in many useful formats. Whether presented as a map with directions, images, videos or stories, we’re constantly evolving with new ways to present information.Starting Price: Free -
9
Aid4Mail
Fookes Software Ltd
Aid4Mail is a fast, reliable, and highly accurate tool to collect, recover, search, and convert emails. It supports most mailbox file formats (e.g. PST, OST, OLM, mbox), IMAP accounts (e.g. Yahoo! Mail, AOL) and popular mail service providers (e.g. Microsoft 365, Exchange, Gmail). Aid4Mail can recover double-deleted messages and corrupted emails, and extract MIME data from certain types of unknown file formats through file carving. Aid4Mail provides a large array of tools to search and filter out unwanted emails during conversion. Save time by using native pre-acquisition filters to download a subset of your mail from Exchange, Office 365, Gmail and other webmail services. Use Aid4Mail’s integrated search engine to cull-down your email collection. Its search operators are very similar to Gmail and Office 365. Aid4Mail is used by Fortune 500 companies, government agencies and legal professionals around the world. It is made in Switzerland by perfectionists.Starting Price: $59.95 -
10
Gigasheet
Gigasheet
Gigasheet is the big data spreadsheet that requires no set up, training, database or coding skills. If you can use a spreadsheet, you can find opportunities in big data. Best of all, your first 3GB are free! Use Gigasheet to filter, sort, group and aggregate data to gain insights. Create pivot tables by simply dragging columns around. Data cleanup tools and functions clean and insert data during analysis. Enrichments such as Email Validation and Geo IP Location look up make your data even more useful. Sharing and collaboration tools make distributing huge data sets a snap. Gigasheet integrates with more than 135 SaaS platforms and databases. Thousands of individuals and teams use Gigasheet to gain insights in minutes, not hours or days. You don't need to be a data scientist to get answers from big data.Starting Price: $95 per month -
11
Perplexity
Perplexity AI
Where knowledge begins. Perplexity is an AI search engine that gives you quick answers. Available for free at as a web app, desktop app, or on the go on iPhone or Android. Perplexity AI is an advanced search and question-answering tool that leverages large language models to provide accurate, contextually relevant answers to user queries. Designed for both general and specialized inquiries, it combines the power of AI with real-time search capabilities to retrieve and synthesize information from a wide range of sources. Perplexity AI emphasizes ease of use and transparency, often providing citations or linking directly to its sources. Its goal is to streamline the information discovery process while maintaining high accuracy and clarity in its responses, making it a valuable tool for researchers, professionals, and everyday users.Starting Price: Free -
12
MConverter
MConverter
Online converter for video, audio, image, e-book, document, subtitle & archive files up to 10 GB. Easy to use. Clean UI. Select files and folders from anywhere, including the clipboard (Ctrl+V). Save your files to any folder. MConverter lets you compress PDF files in bulk, by up to 90%! Supported formats: 3g2, 3gp, 7z, aac, ac3, ai, aif, aiff, amv, arw, avi, avif, azw, azw3, bmp, bz2, cab, cbr, cbz, cr2, cr3, cso, csv, deskthemepack, dng, doc, docx, drawio, epub, fb2, flac, flv, gif, gz, heic, htm, html, ico, iso, jar, jpeg, jpg, json, jxl (jpeg xl), m4a, mcaddon, mcpack, mctemplate, mcworld, md (markdown), mid, mkv, mobi, mov, mp3, mp4, mpeg, mpg, mpo, mxf, nef, odp, ods, odt, ogg, opus, pdf, pdf/a, png, ppm, pps, ppsx, ppt, pptx, psd, raf, rar, rtf, rw2, sami, smi, srt, sub, svg, tar, tbz2, tgz, themepack, tif, tiff, tini, tsv (tab), txt, txz, vob, wav, webm, webp, wma, wmv, xcf, xls, xlsx, xz, zipStarting Price: €9.99 -
13
KACE by Quest
Quest Software
KACE® by Quest supports your unified endpoint management (UEM) strategy by helping you discover and track every device in your environment, automate administrative tasks, keep compliance requirements up-to-date and secure your network from a range of cyberthreats. Discover, manage and secure all your endpoints from one console as you co-manage your traditional and modern endpoints, including Windows, Mac, Linux, ChromeOS, and iOS and Android devices. KACE is a Unified Endpoint Management solution that offers a single point of control for managing IT systems across the entire organization, inside or outside your network. This comprehensive solution takes the stress out of keeping devices secure and compliant so you can do more.Starting Price: As low as $3/mo/device -
14
Brave Search
Brave Software
Brave Search is a privacy-focused search engine from the creators of the Brave Browser. Brave Search does not currently show ads. Eventually it will have an ad-supported free model, or a paid model that does not show ads. Brave Search API: Power your search and AI applications with the fastest growing independent search engine since Bing. Access an index of billions of pages with a single API call. All users can get started for FREE for up to 1 query per second, and 2,000 queries per month. Brave is one of only a few global, independent search providers, and it’s the fastest growing search engine since Bing. Get access to high-quality data that’s actually usable. Build everything from search engines to AI apps. As the default engine in the Brave browser, Brave Search is consistently refreshed with new data via its Web Discovery Project contribution framework.Starting Price: Free -
15
Bing
Microsoft
Bing helps you turn information into action, making it faster and easier to go from searching to doing. Bing helps you turn information into action, making it faster and easier to go from searching to doing. As Bing continues to evolve, we’re focused on expanding the ways in which you can use Bing. For example, did you know that Bing powers InPrivate search with Microsoft Edge, quick searches in the Windows taskbar, work search scenarios with Microsoft 365, immersive gaming in Microsoft Flight Simulator, and much more? That’s why starting today, you will see a shift in product to Microsoft Bing, which reflects the continued integration of our search experiences across the Microsoft family. Beyond our commitment to expanding search scenarios, we also believe that you can and should get more value out of the searches you perform every day. That’s why we’re also excited to announce the expansion of Give with Bing, which helps you make a difference just by searching.Starting Price: Free -
16
Parseur
Parseur Pte. Ltd.
Parseur is an email parser and document processing automation software that automatically extracts data from emails, PDFs, CSVs or Excels and sends it to any app, spreadsheet or database. Parseur saves you hundreds hours of manual data entry and lets you automate your business. Parseur works by creating a template based on a sample email, and highlighting portions of text to capture. After generating a template, Parseur will automatically extract the data from every similar email. The best feature about Parseur is that if you have more than one template, Parseur will automatically pick the right one for you so you can consolidate data extraction from many different providers automatically. Parseur comes loaded with ready made templates for many industries including food orders (Grubhub, DoorDash), Google Alerts, real estate leads (Zillow, Apartments.com), Job applications (LinkedIn), Bookings (Airbnb) and many more!Starting Price: $99 / month -
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iLovePDF
iLovePDF
Every tool you need to work with PDFs in one place. Every tool you need to use PDFs, at your fingertips. All are 100% FREE and easy to use! Merge, split, compress, convert, rotate, unlock and watermark PDFs with just a few clicks. Combine PDFs in the order you want with the easiest PDF merger available. Separate one page or a whole set for easy conversion into independent PDF files. Reduce file size while optimizing for maximal PDF quality. Convert your PDF to WORD documents with incredible accuracy. Convert your PDFs to POWERPOINT. Sign and certificate PDF documents. Request for digital signatures or sign your own documents.Starting Price: $7 per month -
18
ownCloud
ownCloud
ownCloud develops and provides open-source software for content collaboration, allowing teams to easily share and work on files seamlessly regardless of device or location. More than 100 million users worldwide already use ownCloud as an alternative to public clouds – and thereby opt for more digital sovereignty, security and data protection.Starting Price: 1.63€/user/month -
19
DeBounce
DeBounce
DeBounce is a fast, accurate, and affordable email validation service. It helps businesses to get rid of invalid email addresses from their databases. If you use popular ESPs to send emails, DeBounce can easily integrate with them and transfer your lists for validation. Here are some key features of DeBounce: 1. Bulk Email Validation 2. Email Validation API 3. List Monitoring 4. Lead Finder 5. Data Enrichment 6. WordPress Email Validation 7. JavaScript Email Validation Widget for Forms Besides the paid services, DeBounce offers some free services. It offers a life-time free disposable email detection API that helps you combat fake and temporary signups. However, if you want to have a more complex validation engine, you can go for a paid plan. Moreover, you can benefit from a free email extractor tool to build email lists and validate them to find cold leads and increase your delivery rate.Starting Price: $10.00/one-time/user -
20
LibreOffice
The Document Foundation
LibreOffice is a free and powerful office suite, and a successor to OpenOffice.org (commonly known as OpenOffice). Its clean interface and feature-rich tools help you unleash your creativity and enhance your productivity. LibreOffice is Free and Open Source Software. Development is open to new talent and new ideas, and our software is tested and used daily by a large and devoted user community. Your documents will look professional and clean, regardless of their purpose: a letter, a master thesis, a brochure, financial reports, marketing presentations, technical drawings and diagrams. LibreOffice makes your work look great while you focus on the content, thanks to its powerful styles system and structuring tools. LibreOffice is compatible with a wide range of document formats such as Microsoft® Word (.doc, .docx), Excel (.xls, .xlsx), PowerPoint (.ppt, .pptx) and Publisher. But LibreOffice goes much further with its native support for a modern and open standard.Starting Price: Free -
21
Aspose.Total Conversion
Aspose
Aspose.Total Conversion is a free online document converter that completely supports conversion to/from many common documents formats, such as word processing, spreadsheet, presentation, CAD drawings, images and other popular file formats. It has included support for converting a single as well as multiple files to other supported file formats such as DOC, DOCX, DOTX, EMF, EPUB, GIF, JPEG, JPG, HTML, MHTML, OBJ, ODP, ODS, ODT, OTP TIFF, TXT, XLS, XLSB, XLSM, XLSX, XLT, XLTX, XML, XPS, PCL, PDF, PLY, PNG, POT, POTM, POTX, PPS, PPSM, PPSX, PPT, PPTM, PPTX, PS, PSD, RTF and many more. The app is very stable and efficiently works on all major platforms including Windows, Mac, Android and iOS. For a smooth conversion you need to upload your documents and select the output format and press the convert button. Once the conversion process is completed you can instantly download the converted document as well as view it or share it with others.Starting Price: Free -
22
SpeedOf.Me
SpeedOf.Me
SpeedOf.Me API, the first and only speed test API, allows you to measure your users' connection speed. SpeedOf.Me is now partnered with NordVPN to offer its users the best quality VPN service at a discounted price. SpeedOf.Me is a broadband speed test that allows you to easily measure your actual Internet speed on all your devices like desktop, mobile, tablet, game console, smart TV, car, etc. Without having to host a SpeedOfMe software on your server, you are now able to run a SpeedOf.Me speed test right from your website or app. It is a Javascript-based API that allows you to measure download speed, upload speed, latency and jitter of the client. This means you can create your own speed test service, collect statistical information and benchmark the bandwidth of your users. Decide what audio/video streaming quality is suitable for the client. Tell the user how long it exactly takes to download/upload a specific file. Integrate it in your Internet-connected hard-ware/equipment.Starting Price: Free -
23
Diigo
Diigo
Diigo is your personal knowledge database. Dramatically improve your research productivity and collaborative sharing. Diigo is the complete solution for online information workflow management, editing and sharing. Streamline, save, share and interact with your online information all in one place. Whether you’re online knowledge library consists of reading, education based researching and sharing, school papers, work projects, online learning, news, travel, health, shopping, career, hobbies, investing, Diigo has your covered. We make it simple to store and mark your information with tags, organize and edit thru annotations and notes right on the webpage, and share the parts you want with anyone. Read more effectively with annotation tools as you browse around the web. Add digital highlighters and sticky notes whether on PC, tablets, or mobile, and have them always be where you left them when you return!Starting Price: $10 per user per month -
24
You.com
You.com
You.com is an AI-powered search engine designed to provide a more personalized and efficient browsing experience. Unlike traditional search engines, You.com prioritizes user control, allowing individuals to customize their search preferences and filter results based on their needs. It integrates advanced artificial intelligence to deliver precise answers, summaries, and actionable insights, often drawing from trusted sources and real-time data. With an emphasis on privacy, You.com avoids tracking user behavior, making it a preferred choice for those seeking a secure, ad-free, and customizable search environment. Its unique interface also supports productivity by offering app-like integrations for tasks like coding, writing, and exploring creative content.Starting Price: Free -
25
IMGCentury
IMGCentury
Using IMGCentury is easy, and you don’t need much programming or computer knowledge! Follow the steps: First of all, Open IMGCentury.com in a new tab of any browser. Then, You can see the “Choose Image” button inside the “Drag and Drop Box.” You can choose the images that need to be compressed using the Choose Image button or Drag and Drop images inside the Drag and Dropbox. Once you choose the image, The List of images will appear on the working box, and the compression process will be initiated. Initially, the compression value has been set to 80%, and the output quality and size of the images will be compressed up to 80% of the input size. If you are satisfied with the quality of the result, you can click the Download button to download the images. Or else, you can adjust the compression ratio by using the sliding bar above the working space. Once you have adjusted the compression ratio to the new setting, you don’t need to re-chosen the image. -
26
Inoreader
Inoreader
With Inoreader, content comes to you, the minute it's available. Subscribe to RSS feeds, blogs, podcasts, twitter searches, Facebook pages, even email newsletters! Get unfiltered news feeds or filter them to your liking. Use Rules to set-up entire workflows such as sending push notifications and emails or marking as read when certain criteria are met. Use active searches to create a search query and all posts mentioning that query will be delivered as a news feed. You can filter out or permit only such articles that match specific criteria from your feeds. Switch easily between our themes designed for day or nightime reading.Starting Price: $1.67 per month -
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eAuditor Cloud
BTC Sp. z o.o.
eAuditor Cloud is a comprehensive SaaS platform for IT asset management, monitoring, security, and data protection. With more than 20 years of experience in corporate and public sector environments, it combines proven functionality with the accessibility and scalability of the cloud. The system provides full visibility and control over the infrastructure - from automatic inventory of computers, servers, operating systems, and software to continuous monitoring of users, devices, and network activity. Advanced modules include remote management, patch installation, BitLocker encryption, SOC dashboard, and task automation. A professional DLP engine protects sensitive data in use, at rest, and in transit through classification, rules, and policies. AI support for CMD/PowerShell and ChatGPT integration help administrators save time and eliminate repetitive tasks. eAuditor Cloud grows with your business - from a free version for up to 100 devices to advanced enterprise-grade packages.Starting Price: 0,4 € / mo./ per 1 PC -
28
ConvertAPI
ConvertAPI
High-performance file conversion API. Convert DOCX, XLSX, PPTX, HTML, PDF, IMAGES and various other files with our powerful REST API. Cut costs and save time by leaving development and server management to us, allowing you to focus on what matters most. Create custom workflows by combining 500 conversions and actions with our elegant, declarative REST API. Built by top-notch developers, our API ensures maximum availability and performance, with globally applied scaling solutions that have made our platform unbeatable for almost ten years. We prioritize supreme support to keep our valued clients satisfied, providing highly available technical assistance to solve your problems quickly and efficiently. Our API libraries are compatible with all popular programming languages and frameworks. Top security is guaranteed with GDPR compliance, ISO 27001 certification, and isolated PODS running on IBM private servers, ensuring the highest level of security.Starting Price: $30 per month -
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NAVER
NAVER
NAVER Corporation is Korea's premier Internet company, operating the nation's top search portal, Naver, the nation's largest children's portal, Jr. Naver, and Korea’s first online donation portal, Happybean. Starting from the pillars of search, NAVER has rolled out a wide range of innovative and convenient online services that enable people to enjoy their lives. A number of surveys demonstrate that the company is regarded as an undisputed leader in the online services industry worldwide. NAVER has emerged as Korea’s largest Internet company in terms of net profit. This outstanding growth is largely attributable to the company's efforts to create and introduce stable revenue streams in its core services; for instance, search-oriented advertising services and fee-based games. NAVER outgrew the confines of the national borders. Not only did we build a good reputation in Japan and China, but we also trying to set up branches abroad.Starting Price: Free -
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Shodan
Shodan
Shodan is the world's first search engine for Internet-connected devices. Discover how Internet intelligence can help you make better decisions. Websites are just one part of the Internet. Use Shodan to discover everything from power plants, mobile phones, refrigerators and Minecraft servers. Keep track of all your devices that are directly accessible from the Internet. Shodan provides a comprehensive view of all exposed services to help you stay secure. Learn more about who is using various products and how they're changing over time. Shodan gives you a data-driven view of the technology that powers the Internet. Within 5 minutes of using Shodan Monitor you will see what you currently have connected to the Internet within your network range and be setup with real-time notifications when something unexpected shows up. The entire Shodan platform (crawling, IP lookups, searching, data streaming) is available to developers.Starting Price: $59 per month