FreeCodeStore

Live match highlighting, flags, groups, replace mode, explain mode, 24 common patterns, cheatsheet.

Beautify, minify, validate, tree view, JSONPath, diff two JSONs, convert to YAML/CSV/TypeScript types.

Base64, URL, HTML entities, hex, binary, ROT13. File mode with image preview. Bidirectional.

MD5, SHA-1/256/384/512 simultaneously. File hashing, HMAC, password strength analyzer.

UUID v4/v7, ULID, nanoid, CUID, ObjectId. Bulk 1-100, parse, custom alphabet.

Side-by-side text diff. Character/word/line modes, inline view, ignore whitespace.

Human-readable cron descriptions, next 10 runs, visual builder, 15 presets.

Decode header + payload, verify HMAC signature, check expiration, generate tokens.

Hex/RGB/HSL/HSB/CMYK/named. All formats at once, contrast check, shades, harmonies.

Unix timestamp, 16 timezones, date math, countdown, relative time, epoch milestones.

Beautify, minify, syntax highlight SQL. Uppercase keywords, explain query parts.

Mini-Postman. GET/POST/PUT/DELETE, headers, auth, body. History, cURL import/export.

Split-view editor + live preview. GFM, syntax highlighting, toolbar, TOC, export HTML.

CSS, JS, HTML minify + beautify. Size comparison, configurable indentation.

Lorem Ipsum, fake names, emails, addresses, JSON mock APIs. Up to 100 items.

Complete reference. Search, categories, decision tree. Copy as code comment.

Visual key-value editor. Import/export .env, convert to JSON/Docker/YAML. Mask values.

Bidirectional converter. Edit either side, validate, error highlighting.

Visual grid builder. Named areas, fr/px/%, responsive breakpoints, Tailwind output.

Parse any URL into parts. Edit query params, encode/decode, QR code, compare two URLs.