Free, private, in-browser tools for developers — since 2020
Web Dev Toolkit is a growing collection of online developer tools and mini-games — from JSON formatters to regex testers, from password generators to reflex games. Everything runs 100% in your browser: your data never leaves your device.
Too many small dev utilities are buried behind accounts, paywalls, or upload servers. We believe a formatter, a converter, or a quick game should open instantly and respect your privacy. That's the whole idea: paste → get the result → move on. Nothing stored, nothing tracked beyond anonymous, aggregate analytics.
Each tool is tested with unit tests and verified in a real browser before release — we ship quality, not broken utilities.
Our privacy policy is short for a reason: we don't have much to collect. Tools run client-side. We use Google Analytics (GA4) in anonymized, aggregate form only to understand which pages are useful. We have no accounts, no profiles, no data brokers.
The toolkit is free, and we intend to keep it that way. To cover running costs we offer: a small Ko-fi tip jar, optional Pro versions of a few popular tools (pay once, no subscription), and we may display unobtrusive ads in the future to keep the servers humming.
Found a bug or want a new tool? The site is open source on GitHub, and you can reach us any time via a GitHub issue. Suggestions are read — the next tool on the homepage could be yours.