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Directory › IDEs and dev tools

Free IDEs and dev tools for open source projects

19 companies, 22 verified offers, re-checked weekly. Not sure which you qualify for? Match your repo.

IDEs and dev tools, 19 companies

IDCompanyWhat you getStatusVerified
FOS-0010 AraxisIDEs and dev tools No-cost licenses for Araxis Merge (advanced 2/3-way file comparison, merging and folder synchronization… ACTIVE verified 2026-09-07 ›
What you get
No-cost licenses for Araxis Merge (advanced 2/3-way file comparison, merging and folder synchronization tool) for contributors to open source projects.
Applies to
contributors
Requirements
no stated requirements
How to apply
Contact Araxis via their discounts/contact page to request an open source contributor license.
Provenance
Confirmed against araxis.com/buy/index.en on 2026-09-07, matched anchor “no-cost licences for contributors to Open Source”.
Open program page ↗Check your repo →
FOS-0028 CaphyonIDEs and dev tools Free Advanced Installer Architect license (the highest tier) for developers of open source projects,… ACTIVE verified 2026-09-07 ›
What you get
Free Advanced Installer Architect license (the highest tier) for developers of open source projects, for building Windows installers.
Applies to
the project , not individual maintainers
Requirements
no stated requirements
How to apply
Email support@advancedinstaller.com with your name and details about your open source project; response in 1-2 business days.
Provenance
Confirmed against advancedinstaller.com/free-license.html on 2026-09-07, matched anchor “Free Advanced Installer License for Open-Source”.
Open program page ↗Check your repo →
FOS-0048 CodeSandboxIDEs and dev tools Free or low-cost access to CodeSandbox for the approved project: an unlimited number of Sandboxes on… ACTIVE verified 2026-09-07 ›
What you get
Free or low-cost access to CodeSandbox for the approved project: an unlimited number of Sandboxes on the eligible workspace and early access to Sandbox API updates. Projects that are no longer maintained but otherwise qualify can get a custom Sandbox limit for documentation and educational examples.
Applies to
the project , not individual maintainers
Requirements
OSI-approved licensepublic repository
run a repo match above to see which you meet →
How to apply
Submit the CodeSandbox support form at codesandbox.io/support and select "CodeSandbox Friends". Approved owners can then invite contributors to the Friends workspace.
Provenance
Confirmed against codesandbox.io/docs/learn/plans/codesandbox-friends on 2026-09-07, matched anchor “CodeSandbox Friends program”.
Open program page ↗Check your repo →
FOS-0058 cubicAI and MLIDEs and dev tools cubic's AI code review is 100% free for open source teams: connect it to a public repository to get… ACTIVE verified 2026-09-07 ›
What you get
cubic's AI code review is 100% free for open source teams: connect it to a public repository to get unlimited AI reviews on pull requests, with codebase-wide, context-aware analysis.
Applies to
the project , not individual maintainers
Requirements
public repository
run a repo match above to see which you meet →
How to apply
No application; connect cubic to a public repository via the GitHub integration.
Provenance
Confirmed against cubic.dev/pricing-plans on 2026-09-07, matched anchor “free for open source teams”.
Open program page ↗Check your repo →
FOS-0068 ej-technologiesIDEs and dev tools Free JProfiler (Java profiler) licenses covering a project's core committers, granted in exchange for a… ACTIVE verified 2026-09-07 ›
Offer 1, JProfiler (open source license)
What you get
Free JProfiler (Java profiler) licenses covering a project's core committers, granted in exchange for a link to the JProfiler site (preferably a text link containing "Java profiler" no nofollow).
Applies to
contributors
Requirements
non-commercial / non-profit
run a repo match above to see which you meet →
How to apply
Online form on the offer page (project name, website URL, contact, number of developers); processing up to 24 hours, license sent by email.
Provenance
Confirmed against ej-technologies.com/jprofiler/openSource on 2026-09-07, matched anchor “Open Source Licenses”.
Offer 2, install4j (open source license)
What you get
Free install4j (multi-platform Java installer builder) license for the project's developers, granted in exchange for a link to the install4j site (preferably a text link containing "multi-platform installer builder" no nofollow).
Applies to
contributors
Requirements
non-commercial / non-profit
run a repo match above to see which you meet →
How to apply
Online form on the offer page (project name, website URL, contact, max number of developers); processing up to 24 hours, license sent by email.
Provenance
Confirmed against ej-technologies.com/install4j/openSource on 2026-09-07, matched anchor “Open Source Licenses”.
Open program page ↗Check your repo →
FOS-0069 EllipsisAI and MLIDEs and dev tools Ellipsis automated AI code review on GitHub pull requests, completely free for public GitHub… ACTIVE verified 2026-09-07 ›
What you get
Ellipsis automated AI code review on GitHub pull requests, completely free for public GitHub repositories with no stated usage limits (private repos instead get a $10/month free usage tier then usage-based billing).
Applies to
the project , not individual maintainers
Requirements
public repository
run a repo match above to see which you meet →
How to apply
No application; install the Ellipsis GitHub app - free access is granted automatically based on the repository being public.
Provenance
Confirmed against ellipsis.dev/pricing on 2026-09-07, matched anchor “free for open source”.
Open program page ↗Check your repo →
FOS-0081 Gitpod (Ona)IDEs and dev toolsAI and ML Up to $200/month in free Ona credits for open source maintainers and contributors, usable for Ona's… ACTIVE verified 2026-09-07 ›
What you get
Up to $200/month in free Ona credits for open source maintainers and contributors, usable for Ona's cloud development environments and AI software engineering agents. Successor to the former "Gitpod for Open Source" free plan after the Gitpod-to-Ona rebrand.
Applies to
an individual maintainer
Requirements
no stated requirements
How to apply
Apply via the signup form at ona.com/open-source.
Provenance
Confirmed against ona.com/open-source on 2026-09-07, matched anchor “monthly free credits for maintainers”.
Open program page ↗Check your repo →
FOS-0086 GraphiteIDEs and dev toolsCI/CDAI and ML Full Graphite Standard plan free for open source projects: unlimited stacking (stacked PRs), insights,… ACTIVE verified 2026-09-07 ›
What you get
Full Graphite Standard plan free for open source projects: unlimited stacking (stacked PRs), insights, automations, and the stack-aware merge queue, with no limit on the number of contributors.
Applies to
organization
Requirements
public repository
run a repo match above to see which you meet →
How to apply
Small projects: sign up for a Graphite Standard annual plan and eligibility is auto-detected. Larger projects: contact Graphite with your GitHub org, website, and project description.
Provenance
Confirmed against graphite.com/blog/startup-program-announcement on 2026-09-07, matched anchor “free for startups and open source projects”.
Open program page ↗Check your repo →
FOS-0088 GreptileAI and MLIDEs and dev tools Greptile's codebase-aware AI code review on pull requests, free (100% off) for qualifying open source… ACTIVE verified 2026-09-07 ›
What you get
Greptile's codebase-aware AI code review on pull requests, free (100% off) for qualifying open source projects.
Applies to
the project , not individual maintainers
Requirements
non-commercial / non-profit
run a repo match above to see which you meet →
How to apply
Sign up via the open source program page (greptile.com/open-source); no separate application form is published.
Provenance
Confirmed against greptile.com/open-source on 2026-09-07, matched anchor “Open Source Program”.
Open program page ↗Check your repo →
FOS-0101 JetBrainsIDEs and dev toolsCI/CDproject management Free licenses for the full JetBrains product lineup (IntelliJ IDEA Ultimate, PyCharm, WebStorm, etc.)… ACTIVE verified 2026-09-07 ›
Offer 1, All Products Pack (OSS development licenses)
What you get
Free licenses for the full JetBrains product lineup (IntelliJ IDEA Ultimate, PyCharm, WebStorm, etc.) for a project's core contributors, for use on the open source project.
Applies to
contributors
Requirements
OSI-approved licenseproject ≥ 3 monthsactively developedpublic repositorynon-commercial / non-profit
run a repo match above to see which you meet →
How to apply
Application form on the offer page; project lead applies on behalf of contributors.
Provenance
Confirmed against jetbrains.com/community/opensource on 2026-09-07, matched anchor “licenses for open source development”.
Offer 2, TeamCity (Open Source license)
What you get
Free TeamCity Professional Server open source license: unlimited servers with up to 100 build configurations per server and 3 build agents per server at no cost, with free upgrades during the license term.
Applies to
the project , not individual maintainers
Requirements
OSI-approved licensenon-commercial / non-profit
run a repo match above to see which you meet →
How to apply
Request via the JetBrains open source program page (team tool licenses, including TeamCity, are requested alongside All Products Pack subscriptions).
Provenance
Confirmed against jetbrains.com/community/opensource on 2026-09-07, matched anchor “licenses for open source development”.
Offer 3, YouTrack (OSS team license)
What you get
Free YouTrack issue tracking license for the open source team, requested through the JetBrains open source program (program covers team tools including YouTrack and TeamCity).
Applies to
the project , not individual maintainers
Requirements
OSI-approved licenseproject ≥ 3 monthsactively developednon-commercial / non-profit
run a repo match above to see which you meet →
How to apply
Request team tool licenses via the open source program application form.
Provenance
Confirmed against jetbrains.com/community/opensource on 2026-09-07, matched anchor “licenses for open source development”.
Open program page ↗Check your repo →
FOS-0122 NavicatdatabaseIDEs and dev tools Complimentary Navicat license (database GUI/administration tools) for approved open source projects;… ACTIVE verified 2026-09-07 ›
What you get
Complimentary Navicat license (database GUI/administration tools) for approved open source projects; sponsored projects display a Navicat logo on their website.
Applies to
an individual maintainer
Requirements
OSI-approved licenseproject ≥ 3 monthsactively developedpublic repository
run a repo match above to see which you meet →
How to apply
Application form on the offer page with project details (name, URL, description, developer count) and contact info; reviewed within 2 business days.
Provenance
Confirmed against navicat.com/en/store/open-source on 2026-09-07, matched anchor “open source license”.
Open program page ↗Check your repo →
FOS-0137 PullfrogAI and MLIDEs and dev tools Pullfrog covers AI model costs for qualifying open source projects, providing unlimited Kimi K2 usage… STALE re-check due 2026-07-20 ›
What you get
Pullfrog covers AI model costs for qualifying open source projects, providing unlimited Kimi K2 usage at no cost for its GitHub coding agent.
Applies to
the project , not individual maintainers
Requirements
public repository
run a repo match above to see which you meet →
How to apply
Apply via the link on the page, or contact support@pullfrog.com.
Provenance
Confirmed against pullfrog.com/for-oss on 2026-07-20.
Open program page ↗Check your repo →
FOS-0161 SourcegraphIDEs and dev toolsAI and ML Complimentary Sourcegraph AI and code search workspace licenses for maintainers of Cloud Native… ACTIVE verified 2026-09-07 ›
What you get
Complimentary Sourcegraph AI and code search workspace licenses for maintainers of Cloud Native Computing Foundation projects.
Applies to
an individual maintainer
Requirements
OSI-approved license
run a repo match above to see which you meet →
How to apply
Fill in the Sourcegraph Workspace Application form embedded on the offer page: email, name, and a link to the project's CNCF page.
Provenance
Confirmed against sourcegraph.com/supporting-open-source on 2026-09-07, matched anchor “Supporting the CNCF”.
Open program page ↗Check your repo →
FOS-0163 StainlessIDEs and dev toolsdocumentationmore tools Stainless Starter plan (normally $79/month per SDK generator) free for qualifying non-commercial open… ACTIVE verified 2026-09-07 ›
What you get
Stainless Starter plan (normally $79/month per SDK generator) free for qualifying non-commercial open source projects: SDK generation from OpenAPI specs, plus documentation site and MCP server generation.
Applies to
the project , not individual maintainers
Requirements
non-commercial / non-profit
run a repo match above to see which you meet →
How to apply
Create a free account, then email Stainless (address on pricing page) to request FOSS approval.
Provenance
Confirmed against stainless.com/pricing on 2026-09-07, matched anchor “Starter plan for free to qualifying non-commercial”.
Open program page ↗Check your repo →
FOS-0166 Syncro SoftIDEs and dev toolsdocumentation Up to ten Named User 6-month subscription-free Oxygen XML licenses each year for a project's leads and… ACTIVE verified 2026-09-07 ›
What you get
Up to ten Named User 6-month subscription-free Oxygen XML licenses each year for a project's leads and core contributors.
Applies to
contributors
Requirements
actively developed
run a repo match above to see which you meet →
How to apply
Application form on the offer page (project name, URL, license page, forum/mailing list, description, contact); Oxygen team reviews and responds.
Provenance
Confirmed against oxygenxml.com/open_source_request_form.html on 2026-09-07, matched anchor “open-source license”.
Open program page ↗Check your repo →
FOS-0167 syntevoIDEs and dev tools Free SmartGit license (Git GUI client for Windows, macOS, Linux) for open-source developers, offered… ACTIVE verified 2026-09-07 ›
What you get
Free SmartGit license (Git GUI client for Windows, macOS, Linux) for open-source developers, offered under syntevo's non-commercial license program (also covering students and public academic/charitable staff).
Applies to
an individual maintainer
Requirements
non-commercial / non-profit
run a repo match above to see which you meet →
How to apply
Request a complimentary license via the registration form at syntevo.com/register-non-commercial/.
Provenance
Confirmed against smartgit.dev/purchase on 2026-09-07, matched anchor “used free of charge by open-source developers”.
Open program page ↗Check your repo →
FOS-0178 TuistCI/CDIDEs and dev tools All paid Tuist server features free forever for open source projects, including binary caching and… ACTIVE verified 2026-09-07 ›
What you get
All paid Tuist server features free forever for open source projects, including binary caching and selective testing (build time improvements of 70% and more cited for cached builds).
Applies to
the project , not individual maintainers
Requirements
public repository
run a repo match above to see which you meet →
How to apply
Email contact@tuist.dev with a link to the repository and your account handle; the team sets the plan on your account.
Provenance
Confirmed against tuist.dev/blog/2024/04/25/tuist-cloud-free-for-open-source on 2026-09-07, matched anchor “free for open source projects”.
Open program page ↗Check your repo →
FOS-0184 WingwareIDEs and dev tools Free Wing Pro (Python IDE) license for unpaid open source development; includes upgrades only within… ACTIVE verified 2026-09-07 ›
What you get
Free Wing Pro (Python IDE) license for unpaid open source development; includes upgrades only within the same major release version (reapply for new major versions). No support guarantees for free-license users.
Applies to
an individual maintainer
Requirements
actively developednon-commercial / non-profit
run a repo match above to see which you meet →
How to apply
Request via the free licenses page on wingware.com, including proof of past contribution to the open source project.
Provenance
Confirmed against wingware.com/store/free on 2026-09-07, matched anchor “open source license”.
Open program page ↗Check your repo →
FOS-0185 YourKitIDEs and dev tools Free YourKit Java Profiler license for developers of the open source project; one installed copy at a… ACTIVE verified 2026-09-07 ›
What you get
Free YourKit Java Profiler license for developers of the open source project; one installed copy at a time per license key, for development of that specific project only. YourKit asks for a reference link on the project's web pages.
Applies to
the project , not individual maintainers
Requirements
non-commercial / non-profit
run a repo match above to see which you meet →
How to apply
Email sales@yourkit.com with subject "YourKit Java Profiler Open Source License Request".
Provenance
Confirmed against yourkit.com/purchase on 2026-09-07, matched anchor “non-commercial open source projects”.
Open program page ↗Check your repo →
No records match.

Discontinued IDEs and dev tools

This offer is gone. Kept on the record so you do not waste an application: Cloud9.

Browse all 170 companies in the directory.