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Free more tools for open source projects

26 companies, 26 verified offers, re-checked weekly. Not sure which you qualify for? Match your repo.

More tools, 26 companies

IDCompanyWhat you getStatusVerified
FOS-0003 Algoliamore tools 200 units free per month on the standard pay-as-you-go plan, translating to 200,000 records and 200,000… ACTIVE verified 2026-09-07 ›
What you get
200 units free per month on the standard pay-as-you-go plan, translating to 200,000 records and 200,000 search requests (worth roughly $180/month).
Applies to
the project , not individual maintainers
Requirements
public repositorynon-commercial / non-profit
run a repo match above to see which you meet →
How to apply
Application form on the offer page; questions to community@algolia.com.
Provenance
Confirmed against algolia.com/for-open-source on 2026-09-07, matched anchor “Open Source license”.
Open program page ↗Check your repo →
FOS-0027 Cal.comproject managementmore tools Sponsored (free) access to Cal.com's paid team offering for open source projects (applicants provide… ACTIVE verified 2026-09-07 ›
What you get
Sponsored (free) access to Cal.com's paid team offering for open source projects (applicants provide their Cal.com team slug); exact plan tier is not specified on the page. In exchange the project must display a "Book us with Cal.com" banner in its footer and README with UTM-tagged links.
Applies to
the project , not individual maintainers
Requirements
no stated requirements
How to apply
Email peer@cal.com with project description, confirmation of criteria, why the free tier is insufficient, your Cal.com team slug, and a link to the repository.
Provenance
Confirmed against cal.com/help/event-types/sponsor on 2026-09-07, matched anchor “Can Cal.com sponsor my open source project”.
Open program page ↗Check your repo →
FOS-0038 Cloudsmithstoragemore tools At least 50 GB of artifact storage plus 200 GB/month of package delivery free across open source… ACTIVE verified 2026-09-07 ›
What you get
At least 50 GB of artifact storage plus 200 GB/month of package delivery free across open source repositories (28+ package formats, global CDN edge distribution), including Pro-plan features such as geo/IP restrictions, access logs, and statistics. Exceptional projects can negotiate larger sponsored quotas.
Applies to
the project , not individual maintainers
Requirements
no stated requirements
How to apply
No advance approval needed: create an open source repository and follow the policy; Cloudsmith may verify eligibility later.
Provenance
Confirmed against docs.cloudsmith.com/resources/open-source-hosting-policy on 2026-09-07, matched anchor “Open-Source Hosting Policy”.
Open program page ↗Check your repo →
FOS-0051 Concordmore tools Essentials plan free for life for verifiable open source projects: data privacy compliance management… ACTIVE verified 2026-09-07 ›
What you get
Essentials plan free for life for verifiable open source projects: data privacy compliance management and consent/trust tools for the project's site.
Applies to
the project , not individual maintainers
Requirements
public repository
run a repo match above to see which you meet →
How to apply
Fill in the form on the open source page with name, email, website URL, and a verifiable open source repo link.
Provenance
Confirmed against concord.tech/open-source on 2026-09-07, matched anchor “Free Plan for Life”.
Open program page ↗Check your repo →
FOS-0053 Cossistantcommunicationmore tools Cossistant Pro plan (support/chat widget) free with included credits, plus a dofollow listing on their… ACTIVE verified 2026-09-07 ›
What you get
Cossistant Pro plan (support/chat widget) free with included credits, plus a dofollow listing on their featured projects page, a guest blog post opportunity, and integration/customization help from the team.
Applies to
the project , not individual maintainers
Requirements
actively developedpublic repositorynon-commercial / non-profit
run a repo match above to see which you meet →
How to apply
Apply via the "Join the OSS friends Program" button on the page.
Provenance
Confirmed against cossistant.com/open-source-program on 2026-09-07, matched anchor “Open Source Program”.
Open program page ↗Check your repo →
FOS-0056 CppDependmore tools Free CppDepend Pro license (C/C++ static analysis: code quality metrics, dependency analysis, code… STALE re-check due 2026-09-07 ›
What you get
Free CppDepend Pro license (C/C++ static analysis: code quality metrics, dependency analysis, code review automation, reports) for active open source contributors; reported as a 1-year license.
Applies to
contributors
Requirements
project ≥ 3 monthsactively developed
run a repo match above to see which you meet →
How to apply
Add the CppDepend logo/link to the project page, then email support@cppdepend.com with your name and project URL.
Provenance
Confirmed against cppdepend.com/cppdepend-for-oss on 2026-09-07, matched anchor “Free CppDepend Pro License for Open Source Contributors”.
Open program page ↗Check your repo →
FOS-0057 Crowdinmore tools Crowdin localization management platform "completely free of charge for open-source projects" … ACTIVE verified 2026-09-07 ›
What you get
Crowdin localization management platform "completely free of charge for open-source projects" including access to beta features, the Global Translation Memory, and Neural Machine Translator access.
Applies to
the project , not individual maintainers
Requirements
OSI-approved licenseproject ≥ 3 monthsactively developedpublic repositorynon-commercial / non-profit
run a repo match above to see which you meet →
How to apply
Create a translation project in Crowdin, then submit the request form on the offer page (project name, license, website, description).
Provenance
Confirmed against crowdin.com/page/open-source-project-setup-request on 2026-09-07, matched anchor “Open Source License”.
Open program page ↗Check your repo →
FOS-0077 Gandimore tools Case-by-case free support, the page states Gandi helps projects with "financial, technical,… ACTIVE verified 2026-09-07 ›
What you get
Case-by-case free support, the page states Gandi helps projects with "financial, technical, administrative, or moral" assistance (historically free domain names and hosting). No fixed tiers or quantities are published; supported projects listed include Debian, Ubuntu, GNOME, Framasoft, and Creative Commons.
Applies to
the project , not individual maintainers
Requirements
no stated requirements
How to apply
Email non-profit@gandi.net with your project proposal.
Provenance
Confirmed against gandi.net/en/gandi-supports on 2026-09-07.
Open program page ↗Check your repo →
FOS-0090 Handsontablemore tools Free use of the Handsontable JavaScript data grid, including its React, Angular and Vue wrappers, under… ACTIVE verified 2026-09-07 ›
What you get
Free use of the Handsontable JavaScript data grid, including its React, Angular and Vue wrappers, under the Non-Commercial and Evaluation License, with no watermark or console notice.
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
No application: set the licenseKey option to "non-commercial-and-evaluation" in the grid configuration, as the License key docs page describes.
Provenance
Confirmed against handsontable.com/docs/react-data-grid/software-license on 2026-09-07, matched anchor “non-commercial or open-source project”.
Open program page ↗Check your repo →
FOS-0093 hello2morrowmore tools Free Sonargraph license for qualifying open source projects (architecture and static code analysis for… ACTIVE verified 2026-09-07 ›
What you get
Free Sonargraph license for qualifying open source projects (architecture and static code analysis for Java, Kotlin, C#, Python 3, Go, TypeScript, C/C++); the free license also covers Sonargraph-Build for use in CI (e.g. breaking the build on metric threshold violations).
Applies to
the project , not individual maintainers
Requirements
no stated requirements
How to apply
Contact sales@hello2morrow.com to request the free open source license.
Provenance
Confirmed against hello2morrow.com/products/sonargraph/non_commercial_license on 2026-09-07, matched anchor “open source project qualifies for a free license”.
Open program page ↗Check your repo →
FOS-0098 Hygraphmore tools Custom options for the Hygraph headless CMS when an open source project outgrows the free plan's… ACTIVE verified 2026-09-07 ›
What you get
Custom options for the Hygraph headless CMS when an open source project outgrows the free plan's limits, agreed case by case. No fixed benefit is published.
Applies to
the project , not individual maintainers
Requirements
no stated requirements
How to apply
Use the "Get in touch" or "Talk to an expert" links on the offer page and describe the project and the limits it needs.
Provenance
Confirmed against hygraph.com/hygraph-for-open-source on 2026-09-07, matched anchor “Hygraph for Open Source Projects”.
Open program page ↗Check your repo →
FOS-0100 Imgbotmore tools Free "Open Source" plan: unlimited public repos, unlimited users… ACTIVE verified 2026-09-07 ›
What you get
Free "Open Source" plan: unlimited public repos, unlimited users. Imgbot losslessly compresses images in your repository and opens automated pull requests with the optimized files.
Applies to
the project , not individual maintainers
Requirements
public repository
run a repo match above to see which you meet →
How to apply
Install the Imgbot GitHub App from the GitHub Marketplace listing and select the free open source plan for public repos.
Provenance
Confirmed against github.com/marketplace/imgbot on 2026-09-07.
Open program page ↗Check your repo →
FOS-0110 LingoHubmore tools Free use of the LingoHub localization and translation management platform under its Sponsored Plan… ACTIVE verified 2026-09-07 ›
What you get
Free use of the LingoHub localization and translation management platform under its Sponsored Plan. The pricing page lists open source projects and non-profits as free and educational institutions as discounted.
Applies to
the project , not individual maintainers
Requirements
no stated requirements
How to apply
Use the "Request Sponsored Plan" link on the pricing page, which opens an email to sales@lingohub.com; describe the project and ask for the open source Sponsored Plan.
Provenance
Confirmed against lingohub.com/pricing on 2026-09-07, matched anchor “Free for open source projects”.
Open program page ↗Check your repo →
FOS-0111 Localizelymore tools Localizely (cloud translation/localization management platform) completely free for open-source… ACTIVE verified 2026-09-07 ›
What you get
Localizely (cloud translation/localization management platform) completely free for open-source projects; pricing page states "If you have an open-source project or initiative that would benefit from our cloud localization platform, we'd like to help."
Applies to
the project , not individual maintainers
Requirements
no stated requirements
How to apply
Submit the application form at https://localizely.com/open-source-project-request/ (linked from the pricing page).
Provenance
Confirmed against localizely.com/pricing on 2026-09-07, matched anchor “Free for Open Source”.
Open program page ↗Check your repo →
FOS-0112 Lokalisemore tools Free use of the Lokalise localization/translation management platform for open source projects… ACTIVE verified 2026-09-07 ›
What you get
Free use of the Lokalise localization/translation management platform for open source projects (non-profits get a discount rather than a free plan).
Applies to
the project , not individual maintainers
Requirements
public repository
run a repo match above to see which you meet →
How to apply
Contact Lokalise (via the contact option referenced in the pricing FAQ) to confirm the project qualifies for the free plan.
Provenance
Confirmed against lokalise.com/pricing on 2026-09-07, matched anchor “we offer lokalise for free to open source projects”.
Open program page ↗Check your repo →
FOS-0121 MyGetmore tools Free MyGet subscription for open source projects: public and community feeds, 1 GB storage, packages up… ACTIVE verified 2026-09-07 ›
What you get
Free MyGet subscription for open source projects: public and community feeds, 1 GB storage, packages up to 100 MB each, Build Services and Symbols Services, and the option to promote feeds in the gallery. Higher storage can be requested in the application.
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
Web form on the offer page with name, email, project details, license, project age, and your role.
Provenance
Confirmed against myget.org/opensource on 2026-09-07, matched anchor “MyGet Open Source Subscription”.
Open program page ↗Check your repo →
FOS-0131 packagecloudmore tools Free hosted package repositories (APT/DEB, YUM/RPM, npm, Maven, PyPI, RubyGems, etc.) for open source… ACTIVE verified 2026-09-07 ›
What you get
Free hosted package repositories (APT/DEB, YUM/RPM, npm, Maven, PyPI, RubyGems, etc.) for open source projects, beyond the generic free plan (2 GB storage / 10 GB bandwidth); the program announcement describes free hosting for OSS packages, with partner projects such as Phalcon and StackStorm.
Applies to
the project , not individual maintainers
Requirements
no stated requirements
How to apply
Sign up for the free 14-day trial at packagecloud.io, then contact packagecloud support to request the Free for Open Source program.
Provenance
Confirmed against blog.packagecloud.io/packagecloud-loves-oss on 2026-09-07, matched anchor “Free for Open Source”.
Open program page ↗Check your repo →
FOS-0133 POEditormore tools Free localization for open source software with no string limitation (unlimited strings into unlimited… ACTIVE verified 2026-09-07 ›
What you get
Free localization for open source software with no string limitation (unlimited strings into unlimited languages, unlimited contributors), versus the regular free plan's 1,000-string cap.
Applies to
the project , not individual maintainers
Requirements
OSI-approved license
run a repo match above to see which you meet →
How to apply
Create a project in POEditor, then in project Settings > Advanced click the Request link next to "Open Source Project" and submit the form for review.
Provenance
Confirmed against poeditor.com/kb/open-source-localization on 2026-09-07, matched anchor “provided for free on POEditor”.
Open program page ↗Check your repo →
FOS-0138 PVS-Studiosecuritymore tools Free one-year PVS-Studio static analyzer license (C, C++, C#, Java) for a non-commercial open source… ACTIVE verified 2026-09-07 ›
What you get
Free one-year PVS-Studio static analyzer license (C, C++, C#, Java) for a non-commercial open source project; one license per project, renewable annually.
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
Add the required PVS-Studio markup to README.md, then fill out the application form on the offer page.
Provenance
Confirmed against pvs-studio.com/en/order/open-source-license on 2026-09-07, matched anchor “open source Licensing”.
Open program page ↗Check your repo →
FOS-0159 Sonatypemore tools Free publishing and hosting of open source Java/JVM components on the Central Repository (Maven… ACTIVE verified 2026-09-07 ›
What you get
Free publishing and hosting of open source Java/JVM components on the Central Repository (Maven Central), the default artifact repository for the Java ecosystem. Free for ordinary community open source publishing; commercial-natured publishing may be subject to fees or limits.
Applies to
the project , not individual maintainers
Requirements
no stated requirements
How to apply
Sign up at central.sonatype.com (Google/GitHub/email), verify a namespace, then publish via the Central Portal or build-tool plugins.
Provenance
Confirmed against central.sonatype.org on 2026-09-07, matched anchor “Serving Open Source Components Since 2002”.
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-0174 Tolgeemore tools Tolgee Cloud Business plan free for open source projects (localization/ translation management… ACTIVE verified 2026-09-07 ›
What you get
Tolgee Cloud Business plan free for open source projects (localization/ translation management platform); paid-tier features at no cost, granted on request. Self-hosting the open source Tolgee platform is also free.
Applies to
the project , not individual maintainers
Requirements
no stated requirements
How to apply
Email info@tolgee.io or DM the team in the Tolgee Slack community.
Provenance
Confirmed against tolgee.io/blog/free-software-localization on 2026-09-07, matched anchor “Free for open-source projects”.
Open program page ↗Check your repo →
FOS-0175 Transifexmore tools Transifex localization platform free forever for qualifying open source projects, including… ACTIVE verified 2026-09-07 ›
What you get
Transifex localization platform free forever for qualifying open source projects, including collaboration with translator communities, APIs and SDKs, and support for 100+ frameworks and tools.
Applies to
the project , not individual maintainers
Requirements
OSI-approved licensepublic repositorynon-commercial / non-profit
run a repo match above to see which you meet →
How to apply
Sign up via the "Use Transifex for Free" link on the open source page (app.transifex.com/signup); eligibility is based on the stated criteria.
Provenance
Confirmed against transifex.com/open-source on 2026-09-07, matched anchor “Localization Community for Open Source Projects”.
Open program page ↗Check your repo →
FOS-0176 Transloaditmore tools Free access to the Transloadit file uploading and media encoding platform for open source projects and… STALE re-check due 2026-07-20 ›
What you get
Free access to the Transloadit file uploading and media encoding platform for open source projects and nonprofits.
Applies to
the project , not individual maintainers
Requirements
no stated requirements
How to apply
Add a "Powered by Transloadit" link to your website and reach out to support@transloadit.com to apply.
Provenance
Confirmed against transloadit.com/pricing on 2026-07-20, matched anchor “nonprofits can get free access”.
Open program page ↗Check your repo →
FOS-0179 Upstashdatabasemore tools $1,000 monthly credit grant covering all Upstash costs (Redis, QStash, etc.), direct… ACTIVE verified 2026-09-07 ›
What you get
$1,000 monthly credit grant covering all Upstash costs (Redis, QStash, etc.), direct technical/integration support with Pro-level priority, and co-marketing (technical articles, backlinks).
Applies to
the project , not individual maintainers
Requirements
public repository
run a repo match above to see which you meet →
How to apply
Application form on the page (name, Twitter/X username, GitHub repo link); reviewed on a rolling basis.
Provenance
Confirmed against upstash.com/open-source on 2026-09-07, matched anchor “Open-Source Program”.
Open program page ↗Check your repo →
FOS-0182 Weblatemore tools Free (gratis) Libre plan on hosted.weblate.org with the same limits as the 160k plan: 160,000 hosted… ACTIVE verified 2026-09-07 ›
What you get
Free (gratis) Libre plan on hosted.weblate.org with the same limits as the 160k plan: 160,000 hosted strings, unlimited translation projects, components, and translators, with continuous localization features.
Applies to
the project , not individual maintainers
Requirements
public repository
run a repo match above to see which you meet →
How to apply
Set the project up on hosted.weblate.org/hosting/ and request the Libre plan; no formal application form beyond project setup.
Provenance
Confirmed against weblate.org/hosting on 2026-09-07.
Open program page ↗Check your repo →
No records match.

Discontinued more tools

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

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