🧰 Encoder & Hash Toolkit
Base64, URL encoding, and MD5/SHA hashes — all computed locally in your browser.
Base64 Encoded
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Base64 Decoded (treats input as Base64)
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What does this toolkit do?
This page bundles three jobs developers and sysadmins do constantly: Base64 encoding/decoding, URL encoding/decoding, and hash generation (MD5, SHA-1, SHA-256, SHA-512). Everything is computed in your browser using native APIs — your input is never uploaded.
When to use each
- Base64 — encode binary or text data into a safe ASCII string, common in data URIs, email attachments, and config files.
- URL encoding — escape special characters so they can travel safely inside a URL or query string.
- SHA-256 / SHA-512 — verify file integrity and checksums; modern, secure hashing.
- MD5 / SHA-1 — still widely used for checksums and legacy systems, but not secure for passwords or signatures.
A note on security
Hashing is not encryption — it's one-way. Never use MD5 or SHA-1 to protect passwords; use a purpose-built password hash on the server instead. For account security, generate strong unique passwords with our password generator.