Hex: Dev Tools

Twenty-one developer utilities. Offline. One purchase.

Hex is the pocket toolkit for the small jobs that interrupt real work — decode a token, pretty-print a payload, test a pattern, check a hash. Every tool runs on your phone. Hex asks for no permissions at all, not even internet access.

ENCODE
Base64 — Encode and decode.
URL Encode — Percent-encode and decode.
HTML Entities — Encode and decode entities.
JWT Decode — Header and payload, pretty-printed.
Hash Generator — MD5, SHA-1, SHA-256 and SHA-512.

FORMAT
JSON Formatter — Prettify, minify and validate.
XML Formatter — Format and validate.
SQL Formatter — Readable queries.
Markdown Preview — Edit and preview.
HTML Preview — Live rendered HTML.

GENERATE
UUID Generator — v4 UUIDs, in bulk.
Lorem Ipsum — Words, sentences or paragraphs.
Password Generator — Secure random passwords with a strength meter.
Color Converter — HEX, RGB and HSL.
Checksum — MD5, SHA-1 and SHA-256 of any file, any size, and verify it against an expected hash.

TIME
Unix Timestamp — Timestamp to date and back.
Cron Parser — Read cron expressions, with presets.
Timezone Converter — Convert a time across zones.

TEXT
Diff Checker — Compare two texts.
Regex Tester — Live matches, with common patterns.
Text Inspector — Characters, words, lines and more.

Copy something and open Hex: it spots JSON, JWT, Base64, URLs, XML, HTML, timestamps, UUIDs, colours and SQL on the clipboard and offers the right tool. Every result copies or exports as a file.

No account, no ads, no tracking, no subscription.

Built by Shyguy LLC — a one-person studio making focused tools for developers.