devsmiths
Fast, clean developer tools.
JSON
JSON Formatter
Beautify, minify, sort keys, and check size — all in your browser.
JSON Validator
Find syntax errors and warnings with line + column precision.
JSON Tree Viewer
Explore large JSON as a tree with search, paths, and previews.
JSON Repair
Fix trailing commas, single quotes, comments, JSONP wrappers, and more.
JSON Diff
Compare two JSON documents — see adds, removes, and changes.
Playground
A placeholder tool used to validate the platform.
Convert
Web
Encode
Base64 Encoder & Decoder
Encode or decode Base64 — standard and URL-safe, with full UTF-8 support.
URL Encoder & Decoder
Percent-encode or decode URL components, full URIs, and form bodies.
HTML Entity Encoder & Decoder
Escape & < > " ' (and optionally all non-ASCII) into HTML entities — or decode the other way.
Hex Encoder & Decoder
Text ↔ hexadecimal with configurable separators — none, space, colon, dash, or 0x prefix.
Generate
UUID Generator
Generate UUID v4 (random) or v7 (sortable, time-based) — up to 1,000 at once.
Hash Generator
Compute MD5, SHA-1, SHA-256, SHA-384, SHA-512 — all at once, in your browser.
Lorem Ipsum Generator
Generate paragraphs, sentences, or words of classic Lorem ipsum placeholder text.
Password Generator
Generate strong passwords using browser crypto — configurable length, character sets, ambiguity filter.