Loading...
Loading...
Convert text to Base64 and back, including emoji and non-Latin scripts. Toggle URL-safe mode for tokens used in URLs and filenames.
This base64 encoder & decoder runs 100% in your browser. Nothing you paste, drop, or generate ever leaves your device - no analytics on your input, no uploads, no logs.
Replaces + and / with - and _ so the string is safe in URLs and filenames.
Same browser-only philosophy. Free, no signup, no upload.
Percent-encode and decode URLs and query parameters.
Encode HTML special characters or decode entities back to text.
Decode JWT header and payload locally - never sent to a server.
Convert plain text to Base64 with full Unicode support.
Beautify, validate, and minify JSON with sortable keys, exact error positions, and a one-click copy.
Validate JSON syntax with exact line and column for every error.
We design and ship internal tooling, dashboards, and customer-facing utilities. Tell us what you need and we'll scope it.