Compare the Top Free SPC Software as of November 2025

What is Free SPC Software?

SPC (Statistical Process Control) software helps manufacturers monitor and control production quality by analyzing real-time process data. It uses charts, control limits, and statistical algorithms to detect variation, identify trends, and prevent defects before they occur. Many platforms automatically collect data from machines, sensors, and manual inputs to ensure accuracy and consistency. SPC software also provides alerts, reports, and root-cause analysis tools to help quality teams respond quickly to process deviations. Overall, SPC software strengthens quality management, reduces waste, and supports continuous improvement across manufacturing operations. Compare and read user reviews of the best Free SPC software currently available using the table below. This list is updated regularly.

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    SBS Quality Management Software

    SBS Quality Management Software

    Sunday Business Systems

    The SBS Quality Management Software Suite (QMS Suite) is a group of 5 software modules that work together for efficient Quality compliance. The QMS Suite can be deployed on your local server or accessed from our cloud server. Each module is designed for ease-of-use to reduce training overhead and improve overall compliance. Password controlled access and privileges ensure you may control access to critical features for each user. The SBS QMS Suite of modules: SBS Quality Database - CAPA / 8D with root cause analysis - Nonconformance management - Risk analysis (FMEA, SWOT, etc.) - Audit management - EHS module SBS Ground Control - Employee training management (LMS) - Document control SBS Asset Tracking Database - Calibrated equipment - Preventive maintenance SBS Inspection Database - Data collection / SPC - Control Plans SBS Vendor Management - Approved vendor list / AVL - Supplier qualification plans Great product for efficient and affordable QMS Compliance
    Starting Price: $4,268 one time fee
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  • 2
    QDM SPC Platform

    QDM SPC Platform

    Dimensional Control Systems

    QDM SPC Platform gives you access to your quality information from anywhere, at any time, instantly. Automate your quality collection and start reducing your costs with real-time monitoring and powerful SPC tools. --- Automate inspection data collection --- Hardware agnostic - use any inspection device --- Monitor product quality in real-time --- Instant SPC reports with trend charts, run charts, and dozens of other SPC chart types --- Create custom reports with any data set based on time, machine, location, operator --- Standardize your quality data regardless of the source --- Connect suppliers to allow them to see their quality and fix problems before shipping --- Use Dashboards to see your quality across all plants and suppliers --- Start small or large and grow the QMS Quality Management System as you need it by adding modules and clients Join dozens of other companies and upgrade your quality to reduce costs and get a hold of your manufacturing quality.
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    Starting Price: $150 month/user
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    SPC-PC IV Explorer

    SPC-PC IV Explorer

    Quality America

    SPC-PC IV Explorer is a leading Statistical Process Control (SPC) Software package for quality assurance, capability evaluations, & streamlined process data management and reporting: -Manage process data with cascading folders grouped by customer, department, product, etc. -Password-protected concurrent-use licensing controls access to features -Process Monitor charts provide dashboard view of KPI -Quickly analyze keyboard data, or data imported or linked from Excel or other ODBC sources such as SAP, ERP, or LIMS -Data entry via electronic gaging supported in optional Work Set view -Customized reports exported to Word with charts, statistics, raw data or other info as needed -Show stratification patterns using symbol shape/color, or filter data using traceability fields. -Optional Web SPC interface for reporting, data entry & process monitoring throughout your supply chain with no local installation -Optional Calibration Management, or purchase separately as QA-Calibrate
    Starting Price: $995.00/one-time/user
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    GainSeeker Suite

    GainSeeker Suite

    Hertzler Systems

    GainSeeker Suite is the enterprise real-time SPC software and manufacturing intelligence platform that compiles disparate manufacturing operations and quality data, and turns it into useful, actionable intelligence. Our clients are able to triage, prioritize, and address issues faster and more reliably. With automated drill down analytics, they are able to diagnose the root cause of problems faster, uncover hidden opportunities to increase revenue, grow margins, and improve asset performance. GainSeeker collects and connects data from a wide range of systems. It will connect to gages, PLC's and vision systems. Additionally, you can connect other enterprise systems like ERP and MES to connect all your manufacturing data.
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    Starting Price: $2195.00/one-time/user
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    SPC for Excel

    SPC for Excel

    BPI Consulting, LLC

    SPC for Excel Software simplifies statistical charting and analysis. SPC for Excel helps you identify problem areas, gain insights into your data, spot trends, solve problems and improve processes all in the familiar environment of Excel. Whether you are a seasoned Black Belt or a novice, interested in Lean Six Sigma, Quality or process improvements, this software is for you. Get all the techniques you need for your charting and analysis. Technical support is free and there are no yearly fees. Discounts for multiple users. Site and enterprise licenses are available. Process Capability analysis - to meet your customer needs Control Charts and Histograms - to manage your processes Gage R&R Studies – to validate your measurement system Problem Solving Tools (Pareto, histogram, scatter, and more) - to help your team solve problems Advanced Data Analysis Tools (DOE, ANOVA, distribution fitting, regression, hypotheses testing, and more) – to meet your advanced needs.
    Starting Price: $329/one-time/user
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    WATS

    WATS

    Virinco

    Use Manufacturing Test & Repair Data to improve cost of internal inefficiencies, warranty claims and supply chain collaboration. WATS is a Manufacturing Intelligence solution for any sized Electronics manufacturers, within the industries of industrial electronics, consumer electronics, medical instrumentation, automotive, and aerospace & defence. WATS features global data acquisition, from your internal and sub-contracted manufacturing. From any test or repair data format. It helps you to quickly identify your most frequent failures and issues, across multiple dimensions. Such as True First Pass Yield for products, revisions, factories and test stations, OEE, CPK, dashboards++ In addition to detailed test and repair data analytics, WATS features customizable alarming capabilities, operator interfaces, detail-rich test asset maintenance management, and centralized distribution mechanism for properties such as test software, unit firmware, serial numbers and MAC addresses.
    Starting Price: €249 / month
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    XLSTAT

    XLSTAT

    Lumivero

    Transform your data analysis with XLSTAT — the ultimate statistics software that more than 150,000 users across 120+ countries rely on! With XLSTAT, you can easily explore, predict, visualize, customize, and share your results without ever leaving Microsoft Excel. And with advanced features devoted to sensory analysis, marketing, life sciences, and quality, XLSTAT lets you unlock the full potential of your data from day one. XLSTAT is a powerful yet flexible Excel data analysis add-on that allows users to analyze, customize and share results within Microsoft Excel. With over 240 standard to advanced statistical features available, XLSTAT is the preferred tool for statistical analysis in businesses and universities, large and small, and for 100,000+ users in over 120 countries across the world.
    Starting Price: $275.00/year/user
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    Predator Software

    Predator Software

    Predator Software

    Since 1994, Predator Software focuses on automating manufacturers worldwide with innovative and award-winning software applications. Predator Software is an industry leader in Industry 4.0, lean manufacturing, industrial networking solutions and automation via shop floor control or SFC. Predator's SFC technologies include CNC networking, machine monitoring, OEE, production data management, data collection, machine simulation & verification, tool & gage crib management, traveler management, CNC post processing, flexible manufacturing systems and robotic cell control software.
    Starting Price: $250
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    StartProto

    StartProto

    StartProto

    StartProto seamlessly integrates with your existing workflows. From quote to cash, modernize all your manufacturing processes and optimize your operations with our lightweight but powerful software. Accurately calculating the cost of producing parts or services is crucial for job shops in order to stay competitive and profitable. With traditional quoting methods, it can be difficult to take into account all the necessary factors, such as run time, setup time, and material cost, leading to inaccuracies and potential financial losses. Our software allows job shops to take into account all these factors in the quoting process. By incorporating run time, setup time, and material cost into the calculation, manufacturers can produce more accurate quotes and avoid underbidding or overcharging for their products and services. This helps to stay competitive in the market, by providing transparent and fair prices to customers.
    Starting Price: $99 per month
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    QW6

    QW6

    Busitech Quality Software Solutions

    Our data visualization SPC software solutions have helped industry-leading manufactures like yours reduce variation, cut waste, minimize reoccurring downtime, decrease returns and defects to run more on-target than ever before. Quality Window 6 or (QW6 ) is a statistical-based software program that was designed specifically for use on the factory floor. It incorporates the power of statistics into an easy-to-understand, quick-to-learn tool that assists a variety of companies, in over 70 countries around the world, to minimize process/product variation as well as helping them analyze and understand failures in their processes. QW6 is called the “find it and fix it” software because it helps to “find” or identify variations or failures in a process or product so you can better understand and “fix” the cause of these process upsets.
    Starting Price: $749 one-time payment
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    KurtSPC Premium

    KurtSPC Premium

    Kurt Workholding

    KurtSPC Premium statistical process control software allows you to collect data from most devices, and provide it at one location optimizing your manufacturing. Statistical process control (SPC) is used to monitor and control a process to ensure that this process operates at its full potential. At full potential, a manufacturing process is capable of creating as much conforming product as possible with a minimum of waste. KurtSPC Premium statistical process control software is a simple-to-configure, easy-to-use solution for process optimization. KurtSPC Premium software features user-definable collection fields, error codes, and graphical or text operator instructions. It supports voice and video, customized screens and reports, machine tool controls, and automated gauging. The software also supports almost all types of gages and metrology tools, networking, and Kurt’s unique and powerful Event/Actions.
    Starting Price: $1,195 one-time payment
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    TRENDABLE

    TRENDABLE

    Argolytics

    Crush your next quality audit. Decrease non-conformances and increase customer satisfaction. Directly input measurements taken “by hand” for line operators and aggregate SPC capability reports for managers, TRENDABLE is the only quality control solution for small manufacturers. TRENDABLE generates professional, stream-lined graphics to showcase your commitment to manufacturing quality “in spec” product. Most engineers are not statisticians. TRENDABLE removes the guesswork by leveraging industry-standard best practices for accurate, straightforward results. TRENDABLE is accessible on any device from anywhere on your shop floor. Give your operators visibility and allow them to contribute to product quality. TRENDABLE is proud to help today’s manufacturers perfect their product. TRENDABLE is a complete quality control tool that helps you improve your product quality, out-shine your competitors, and empower your entire production team.
    Starting Price: $25 per month
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