Percent-escape bytes
Application/x-www-form-urlencoded style escaping.
Clienta%20b
Nearby workflows on Toolcore
- URI percent-encoding (encodeURI) — encodeURI/decodeURI vs encodeURIComponent/decodeURIComponent—full URI strings vs components, in the browser. when the payload needs a different encoding or escape format.
- URL parser — Split URLs into protocol, host, path, query, and hash—browser URL API; optional https:// assumption; no fetch. when the payload needs a different encoding or escape format.
- Base64url (URL-safe) encode & decode — UTF-8 ↔ Base64url (RFC 4648: -, _, padding optional on decode)—same bits as Base64, JWT-segment style; client-side. when the payload needs a different encoding or escape format.
- Encoding tools — Hub index: Base64 & URL, Base64url, Base32, Crockford, LEB128, ASCII85, Z85, Base58, base-36, bencode, Morse, quoted-printable, URI, Puny… when the payload needs a different encoding or escape format.
Common use cases
- Percent-escape bytes for quick local checks without uploading data.
- Copy results into tickets, docs, or classroom notes.
Common mistakes to avoid
Unexpected input shape
See the intro and how-to notes for accepted formats.
FAQ
Is processing local?
Yes—this runs entirely in your browser.
Agent prefill?
Use q or qb for the main text field when supported.
More tools
Related utilities you can open in another tab—mostly client-side.
URI percent-encoding (encodeURI)
ClientencodeURI/decodeURI vs encodeURIComponent/decodeURIComponent—full URI strings vs components, in the browser.
URL parser
ClientSplit URLs into protocol, host, path, query, and hash—browser URL API; optional https:// assumption; no fetch.
Base64url (URL-safe) encode & decode
ClientUTF-8 ↔ Base64url (RFC 4648: -, _, padding optional on decode)—same bits as Base64, JWT-segment style; client-side.
Encoding tools
ClientHub index: Base64 & URL, Base64url, Base32, Crockford, LEB128, ASCII85, Z85, Base58, base-36, bencode, Morse, quoted-printable, URI, Punycode/IDN, Unicode escapes, data URLs, MIME, hex, HTML entities, JWT, JSON helpers, crypto.