ThreadFox
Reddit rules index · Product shortlists
Where can I promote
developer tools on Reddit?
Include technical context: how you built the tool or why it helps developers. A service advertisement may still be out of bounds.
4 community routes have a permissive saved verdict and supporting rule text below. “Thread only” means using the designated thread, not starting a promotional post.
Rules read 2026-10-04 to 2026-10-12. Shortlist checked 2026-10-13. Member counts are from each saved read, not live counts. Rules can change; check the linked community rules before posting.
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Subreddits that allow self-promotion for developer tools
r/foss
Post with conditionsOnly for developer tools that are free and open source.
Rule: Promotion must be FOSS
When promoting something, it must be Free and Open Source Software.
How to use this route: Promote only Free and Open Source Software. A proprietary tool or a closed-source free tier does not meet the stated condition.
r/developer
Post with conditionsFor a useful contribution to a professional developer discussion.
Rule: Spam/Self-Promotion
If you choose to share a product or service, you should do so in such a way that contributes to the greater discussion and provides value for our readers. If it doesn't provide adequate value for our readers, it will be removed.
Rule: Low-Effort Post
Any post that links to another source (YouTube, blog, GitHub, etc) and does not include any text within the post - such as a discussion starter or a question, will be removed.
How to use this route: Keep promotion limited and relevant to developers. Include discussion or a question in the post itself; a link to a blog, video or repository without text may be removed. Significant self-promotion and spam are not welcome.
Read r/developer rules · Visit the community · Full saved rules
r/ShowYourApp
Post with conditionsThe rules explicitly include tools.
Rule: Show What You’ve Built
This community exists for makers, devs, and founders to share their apps, SaaS, and software projects. Show us what you’ve created — web apps, mobile apps, tools, extensions, anything!
Rule: Links Are Allowed 🚀
You can share your app’s website, landing page, or demo link. Just make sure your post includes a short description or context — don’t drop a bare link.
How to use this route: Include a short description or useful context with your website, landing-page or demo link. Do not drop a bare link. Give feedback on other makers’ projects and avoid spam.
Read r/ShowYourApp rules · Visit the community · Full saved rules
r/devtools
Post with conditionsFor tools that help developers do their work.
Rule: No Spam
This sub is not meant to advertise services. Submissions about projects you've worked on are welcome, but only if you include some information about how you built it or why it matters.
How to use this route: Explain how you built the project or why it matters to developers. The community allows project submissions but is not a place to advertise services.
Read r/devtools rules · Visit the community · Full saved rules
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Share what you are making and who it helps. Start with the free plan to narrow down communities and the kind of post that fits.
These are dated readings of community rules, not moderator approval for a particular post. Quotations belong to the communities; the route notes are ThreadFox’s reading.