Subreddit marketing guide

r/javascript: rules, promo tolerance & best time to post

open to promo (7/10) · tone: Technical, pragmatic, and collaborative—people share real problems and solutions with genuine curiosity rather than marketing speak.

Can you promote in r/javascript?

Relatively open: clearly-disclosed, genuinely useful product mentions are usually tolerated here — read the rules and stay helpful-first anyway.

r/javascript rewards technical depth, transparency, and builder culture—developers who contribute useful open-source tools, ask honest questions with [AskJS], or surface real gotchas get upvoted. The community is skeptical of unsupported claims and comparative marketing, but welcomes self-promotion if it solves a genuine problem and comes with reproducible evidence. Tone is collegial and pragmatic, with low tolerance for hype.

• DO include GitHub/NPM links and licenses (MIT, Apache 2.0, FOSS preferred)
• DO provide reproducible examples, benchmarks, or harnesses
• DO frame tools as solving real problems, not as silver bullets
• DO use [AskJS] prefix for questions to signal good faith
• DO acknowledge limitations and trade-offs transparently
• DON'T post closed-source or proprietary-only solutions
• DON'T make performance claims without reproducible evidence
• DON'T spam multiple threads; use weekly showcase threads
• DON'T pitch enterprise-only or paywalled alternatives to FOSS tools
• DON'T ignore accuracy in competitive benchmarks; community fact-checks

New to this? Read how to promote without getting banned and the Reddit self-promotion rules before you post here.

Best time to post in r/javascript

Based on when this community's recent top & hot posts were created: 14:00–18:00 UTC. Re-compute it live →

What this community complains about

Recurring pain points in recent threads — each one is a conversation your product might belong in:

• Tooling friction and breaking changes (ESLint upgrades, environment setup)
• Performance optimization and benchmarking accuracy
• JSON serialization edge cases and data integrity
• Framework/library evaluation and fair comparison
• Local development environment complexity

How locals talk

[AskJS]FOSSopen/freeMITApache 2.0vanilla JSESMzero-dependencyreproducible harnessbenchmarked

Using a community's own vocabulary is the difference between reading as a member and reading as a marketer.

FAQ

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