foropensource · the open-source offer registry

Is Cloud9 still free for open source? No.

Cloud9’s free-for-open-source offer has been discontinued (last checked 2026-07-06). The record below is kept for reference.

FOS-0036 DISCONTINUED confirmed gone 2026-07-06

Cloud9

Cloud9 IDE (free workspaces for open source)

IDEs and dev tools

What it was

Formerly offered free cloud development workspaces for open source projects on c9.io. After the AWS acquisition, c9.io now redirects to AWS Cloud9, a paid AWS service with no open source offer.

How to apply

Not possible; c9.io redirects to AWS Cloud9, which has no OSS program.

Provenance

Checked 2026-07-06: program page gone or offer withdrawn. Retained for the record.

no application path, alternatives below

Still-active alternatives

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 ML IDEs 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 ML IDEs 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 tools AI 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 tools CI/CD AI 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 →

Browse all free IDEs and dev tools offers, or match your repo against every current offer.

Know of a new Cloud9 offer for open source? Update it on GitHub.