Small tools. Big impact.

rellit.de collects simple, fast web tools – each running on its own subdomain, fully static, no tracking, mostly without a server round-trip.

Converts JSON, YAML, TOML and XML into each other directly in your browser – no upload, no server.

Indents JSON, YAML, TOML and XML properly – with per-format settings, syntax errors explained in detail and syntax highlighting.

Computes MD5, SHA and CRC32 hashes right in your browser – single value or line-by-line for whole lists.

Encodes and decodes Base64, URL, hex, Base32, HTML entities, Unicode escapes and punycode – right in your browser.

Generates and verifies bcrypt hashes and breaks down every part: version, cost factor, salt and digest.

Generates and verifies Argon2 hashes in all three variants – including an explanation of version, memory, iterations and parallelism.

Converts images and other files into Base64 data URLs and displays pasted data URLs as images again.