About
Almost all of these run in the browser: paste text and get a result without uploading it to CheckKit. Useful for API samples, list cleanup, cookie conversion, and scratch notes.
What local processing means
JSON, URL, timestamps, UA, cookies, text tools, and notes run in this browser. After you close the tab, nothing is kept on the server by default except notes you choose to save locally.
Useful combinations
Clean lists with the text processor, then export CSV via text-to-table. For APIs, format JSON, encode query values, and convert timestamps to check expiry.
Large-text behavior
Formatting huge JSON, deduping very long lists, or turning a full log into a table can slow the tab because the work runs in your browser, not against a server quota. Clear the box when you are done, especially for cookies and notes that may hold login state.
Related tools
Free developer and text tools: JSON format, URL encode/decode, timestamp conversion, UA parsing, cookie format conversion, text cleanup, text-to-table, and local notes.