DevKit
Online developer tools. Works in browser — no sign-up, no ads.
Markdown Editor
Live preview, syntax highlighting, toolbar and autosave.
NEWJSON Formatter
Format, minify, validate and explore JSON with tree view.
NEWLog Viewer
View and filter structured logs. Supports JSON and NDJSON.
Base64
Encode and decode Base64 strings and files.
URL Encoder
Encode and decode URLs and query parameters.
JWT Decoder
Decode and inspect JWT tokens without a server.
Regex Tester
Live match, per-line tests, simplify suggestions, code generation for 4 languages.
UUID Generator
Generate v4 UUIDs one by one or in bulk.
Hash Generator
Calculate MD5, SHA-1, SHA-256 and other hashes.
Color Picker
Convert between HEX, RGB, HSL color formats.
Byte Inspector
Decode raw bytes as every data type and byte order at once — built for Modbus. Encodes back too.
NEWUnix Timestamp
Live clock, epoch ↔ date conversion, code snippets, reference table.