Useful tools. No nonsense.

Small developer utilities that run entirely in your browser. Nothing you paste is uploaded.

Date & Time

Timestamp Converter Convert Unix timestamps, milliseconds and ISO 8601 dates instantly.
Cron Helper Read a cron expression in plain English and see exactly when it next runs.

Data & JSON

JSON Formatter Format, minify and validate JSON, with the exact line and column of any error.

Encoding

Base64 Encoder / Decoder Encode text to Base64 and back. Unicode-safe, and accepts base64url.
URL Encoder / Decoder Percent-encode and decode URLs, with component and full-URL modes kept separate.

Developer