Encoding & Crypto
125 free encoding & crypto tools in the Developer Tools collection — every one runs in your browser with no signup and no uploads. Page 2 of 2.
HMAC Generator
Keyed-hash message authentication codes — SHA-256, SHA-384, SHA-512.
Base32 Encoder & Decoder
Encode and decode RFC 4648 Base32 — case-insensitive, A–Z and 2–7.
Base58 Encoder & Decoder
Encode and decode Base58 using the Bitcoin alphabet.
SHA3-256 Hash Generator
Generate FIPS 202 SHA3-256 (Keccak) hashes in your browser.
RIPEMD-160 Hash Generator
Generate 160-bit RIPEMD-160 hashes in your browser.
CSS Box Shadow Generator
Build a box-shadow with live preview and copy the CSS.
CSS Text Shadow Generator
Style a text-shadow with live preview and copy the CSS.
Base64 URL-Safe Encoder
Encode and decode Base64URL (RFC 4648 §5) for tokens and URLs.
Quoted-Printable Encoder
Encode and decode Quoted-Printable (RFC 2045) email content.
Punycode Converter
Convert between Unicode domains and Punycode (xn--) per RFC 3492.
Base85 Encoder
Encode and decode Base85 (Z85) — compact 4-byte to 5-char binary text.
ASCII85 Encoder
Encode and decode Adobe ASCII85 used in PostScript and PDF.
File Hash & Checksum Tool
Compute MD5, SHA-1, SHA-256 and SHA-512 for any file — and verify it.
JWT Builder
Build and sign a JSON Web Token (HS256) entirely in your browser.
Multiple Box Shadow Generator
Stack, reorder and tune layered CSS box-shadows with a live preview.
Hash Generator (SHA-1 / SHA-256 / SHA-384 / SHA-512)
Hash text or files with multiple SHA algorithms at once and verify checksums.
CSS Text-Shadow Generator
Build layered text shadows visually and copy the CSS.
Base64 File Encoder & Decoder
Encode any file to Base64 or a data URL, and decode Base64 back to a downloadable file.
UUID / ULID Batch Generator
Generate hundreds of v4 UUIDs or ULIDs at once, then copy or download.
Text Encryptor (AES-256)
Password-encrypt any text with AES-256-GCM, entirely in your browser.
HTML Entity Encoder / Decoder
Convert text to and from HTML entities — named and numeric.
Base32 Encoder / Decoder
Encode and decode text to RFC 4648 base32, right in your browser.
URL Encoder / Decoder
Percent-encode or decode URLs and query values — component or full-URL mode, batch lines, copy.
String Escape Tool
Escape or unescape a string for JSON, JavaScript, CSV, SQL, regex and shell.
Base58 Encoder / Decoder
Bitcoin-style Base58 and Base58Check encode and decode, right in your browser.