HandyTools
15 free developer tools with a Windows 95 interface
HandyTools launched on July 14, 2026 with 6 votes, #3,356 of 24,623 launches that month and more than 75% of that year's launches.
What it does
HandyTools is a collection of 15 free developer and productivity tools — JSON formatter, regex tester, base64 & URL encoders, UUID & password generators, unit & color converters, and more — all wrapped in a nostalgic Windows 95 interface. Everything runs 100% in your browser: no signup, no ads, no tracking, nothing uploaded to a server. Just open a tool and go.
17 free online developer tools: JSON formatter, password generator, unit converter, base64 encoder, regex tester, color converter & more. No signup, no ads.
HandyTools is a free collection of 17 browser-based utilities for developers and everyday users. Every tool runs entirely in your browser — no account required, no data sent to any server, no ads. JSON Formatter & Validator — Paste raw or minified JSON to format it with indentation, or minify it to compact form. Validates syntax and reports parse errors. Base64 Encoder / Decoder — Encode plain text or binary data to Base64, or decode Base64 strings back to plain text. Useful for JWTs, data URIs, and API payloads. URL Encoder / Decoder — Percent-encode special characters in URLs or decode encoded strings. Essential for working with query parameters and REST APIs. Regex Tester — Write a…from handytools.dev
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