JSON Formatter
LiveFormat, minify and validate JSON. Tree view, syntax highlighting, errors with line and column.
OpenToolkit
Small utilities I reach for every day. They run entirely in your browser - nothing you paste leaves the page.
JWT Decoder
PlannedDecode a JWT into header and payload, check expiry, verify the signature.
Base64
PlannedEncode and decode Base64, text and files, URL-safe variant.
Cron Parser
PlannedRead a cron expression in plain English and see the next runs.
Text Diff
PlannedSide-by-side and inline diff for two blobs of text.