All tools

The complete catalogue.

JSON formatterFormat, minify and validate JSON with exact error positions. Reads JSONC, JSON5 and NDJSON.Local

Log explorerFilter logs by level and search, group stack traces, collapse repeats, and compact a long run into something small enough to hand a model.Local

Data converterConvert between JSON, YAML and CSV, with error positions.Local

DiffCompare two texts by line, word or character, or compare JSON by structure.Local

Regex testerMatch, capture and replace with a live preview, and warnings for risky patterns.Local

ID generatorGenerate UUID v4, UUID v7, ULID and Nano ID in bulk.Local

Timestamp converterDetects seconds, milliseconds and microseconds, and shows several time zones side by side.Local

Cron inspectorExplain a cron expression in words and list the next runs in any time zone.Local

cURL / HTTP inspectorNewRead what a request actually sends, then convert it to fetch, Python or Go.Local

Encoder / decoderBase64, URL, hex, HTML entity and Unicode escapes, chained in any order.Local

JWT inspectorDecode header and claims, convert the time fields, and verify an HMAC signature locally.Local

Hash & checksumSHA-1 through SHA-512 for text or a file, with local checksum comparison.Local

Secret scannerNewFind API keys, tokens and personal data before you paste text somewhere else.Local

Token inspectorNewSee how much of a model context window your text fills, and which parts fill it.Local