Best Free Code Search Engines

Cody, Sourcegraph’s AI code assistant goes beyond individual dev productivity, helping enterprises achieve consistency and quality at scale with AI. Unlike traditional coding assistants, Cody understands the entire codebase, enabling deeper contextual awareness for smarter autocompletions, refactoring, and AI-driven code suggestions. It integrates with IDEs like VS Code, Visual Studio, Eclipse, and JetBrains, providing inline editing and chat without disrupting workflows. Cody also connects with tools like Notion, Linear, and Prometheus to enhance development context. Powered by advanced LLMs like Claude Sonnet 4 and GPT-4o, it optimizes speed and performance based on enterprise needs, and is always adding the latest AI models. Developers report significant efficiency gains, with some saving up to six hours per week and doubling their coding speed.

GitHub is the world’s most secure, most scalable, and most loved developer platform. Join millions of developers and businesses building the software that powers the world. Build with the world’s most innovative communities, backed by our best tools, support, and services. If you manage multiple contributors , there’s a free option: GitHub Team for Open Source. We also run GitHub Sponsors, where we help fund your work. The Pack is back. We’ve partnered up to give students and teachers free access to the best developer tools—for the school year and beyond. Work for a government-recognized nonprofit, association, or 501(c)(3)? Get a discounted Organization account on us.

GitLab is a complete DevOps platform. With GitLab, you get a complete CI/CD toolchain out-of-the-box. One interface. One conversation. One permission model. GitLab is a complete DevOps platform, delivered as a single application, fundamentally changing the way Development, Security, and Ops teams collaborate. GitLab helps teams accelerate software delivery from weeks to minutes, reduce development costs, and reduce the risk of application vulnerabilities while increasing developer productivity. Source code management enables coordination, sharing and collaboration across the entire software development team. Track and merge branches, audit changes and enable concurrent work, to accelerate software delivery. Review code, discuss changes, share knowledge, and identify defects in code among distributed teams via asynchronous review and commenting. Automate, track and report code reviews.

Bitbucket is more than just Git code management. Bitbucket gives teams one place to plan projects, collaborate on code, test, and deploy. Free for small teams under 5 and priced to scale with Standard ($3/user/mo) or Premium ($6/user/mo) plans. Keep your projects organized by creating Bitbucket branches right from Jira issues or Trello cards. Build, test and deploy with integrated CI/CD. Benefit from configuration as code and fast feedback loops. Approve code review more efficiently with pull requests. Create a merge checklist with designated approvers and hold discussions right in the source code with inline comments. Bitbucket Pipelines with Deployments lets you build, test and deploy with integrated CI/CD. Benefit from configuration as code and fast feedback loops. Know your code is secure in the Cloud with IP whitelisting and required 2-step verification. Restrict access to certain users, and control their actions with branch permissions and merge checks for quality code.

BLACKBOX AI is an advanced AI-powered platform designed to accelerate coding, app development, and deep research tasks. It features an AI Coding Agent that supports real-time voice interaction, GPU acceleration, and remote parallel task execution. Users can convert Figma designs into functional code and transform images into web applications with minimal coding effort. The platform enables screen sharing within IDEs like VSCode and offers mobile access to coding agents. BLACKBOX AI also supports integration with GitHub repositories for streamlined remote workflows. Its capabilities extend to website design, app building with PDF context, and image generation and editing.

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.

With rapidly growing codebases, a proliferating number of repositories, multiple languages and file formats, and an increasing number of developer tools, Sourcegraph's Code Search enables developers to quickly explore and understand their code with precision and accuracy and automate large-scale code changes.

Security teams can quickly pinpoint the spread of Security Issues from CVE, OWASP, Stackoverflow and other published resources. Krugle helps developers discover important code fixes, share problem solving insights and troubleshoot complex problems. Support engineers use Krugle Enterprise to share existing fixes, document issues, verify project details and track down key resources. Krugle delivers continuously updated, federated access to all of the code and technical information that defines your business. Krugle search helps your organization pinpoint critical code patterns and application issues - immediately and at massive scale.

Ultimate solution for digital marketing and affiliate marketing research, PublicWWW allow you to perform searches this way, something that is not possible with other regular search engines. Find related websites through the unique HTML codes they share, i.e. widgets & publisher IDs. Identify sites using certain images or badges. Find out who else is using your theme. References to use a library or a platform. Find code examples on the internet. Figure out who is using what JS widgets on their sites.

Natural language search surfaces internal libraries and existing patterns. This helps prevent stale code, dependency bloat and frees up time to work on unsolved problems. Making it easier to discover internal APIs improves adoption and reduces duplication. bloop’s natural language search returns accurate results in less time, making it a powerful alternative to slow keyword searches and asking colleagues for help. bloop understands your codebase. When responding to natural language searches, complex concepts are summarised and the intention behind code is explained. You can follow up a natural language search with a codebase change. This is ideal for small changes and can be initiated by anyone on the team, regardless of coding ability. Precise code navigation in 10+ languages helps you move quickly through refs and defs.

Lightning-fast answers, documentation, and code snippets for your dev queries. AI-powered agents decipher your complex questions and craft tailored solutions. Seamlessly interact with your repositories for contextualized search and assistance. Unlock unlimited searches with the most powerful model GPT-4. Devv is the next-gen search engine for developers. Devv offers a new mode designed to deliver more accurate and detailed responses. Multi-agent architecture that employs different agents and language models based on the specific requirements of the task at hand. Now, you have the ability to generate Python code and execute it directly within Devv. Devv is solely dedicated to developing scenarios. This can let us focus more on building better search indices and models. Our mission is to create the premier information retrieval tool for developers.

Ask a question of your codebase. Documatic intelligently gets you the answer. Documatic search uses AI to understand your question, and identifies the bit of documentation or code containing the answer. You can ask questions from the Documatic platform, vscode and slack. Easily visualize how the important infrastructure in your codebase interacts. Never again will you question whether a function impacts your AWS resources! Documatic builds a map of your codebase so you can quickly see the flow of information from file to file, folder to folder. We highlight important infrastructure like cloud, databases and payment processors so you always know the impacts of your code on security and costs. Generate documentation in the changes in your codebase each day, week, or month.

SymbolHound is a search engine that doesn't ignore special characters. This means you can easily search for symbols like &, %, and π. We hope SymbolHound will help programmers find information about their chosen languages and frameworks more easily. SymbolHound is primarily a programming search engine. Searching for symbols is just not that useful for the average Internet user. Google could probably very easily do this, but it wouldn't make their search engine any better for the vast majority of their user base; in fact, it might make it worse. But for the small percentage of people who find themselves needing to search for special characters, Google is not useful. However, SymbolHound is a symbol search engine and is perfect for that query.

DataFragment is a search engine for source code used by thousands of leading tech companies around the world. We help them on many aspects going from finding new clients for their SaaS products to auditing cyber-security risks. We crawls the whole web with our technology in order to construct the biggest source code searchable database.