Planned
File checksum
Check a local file against a digest value.
files · checksum
Browser-local tools
Developer tools that get out of the way.
Encode, encrypt, hash, and inspect data directly in your browser. No account, upload, or unnecessary steps.
Press / to search
25 tools in the catalog
Available
AES
Encrypt or decrypt text with a password.
AES · AES-GCM
Available
Chain operations
Run compatible encoders, hashes, and crypto steps in sequence.
pipeline · chain
Available
Base64
Encode or decode text with standard Base64.
Base64 · UTF-8
Available
Base64URL
Encode or decode URL-safe Base64 without padding.
Base64URL · URLs
Available
Hex
Encode or decode bytes as hexadecimal text.
hex · bytes
Available
URL / Percent
Percent-encode or decode text for URLs and query strings.
URL · percent-encoding
Available
HTML Entities
Escape or unescape HTML character references.
HTML · entities
Available
Base32
Encode or decode text with RFC 4648 Base32.
Base32 · RFC 4648
Available
Base58
Encode or decode text with the Bitcoin Base58 alphabet.
Base58 · Bitcoin
Available
Binary
Encode or decode text as 8-bit binary groups.
binary · bits
Available
Unicode Escape
Encode or decode \uXXXX and U+XXXX escape sequences.
Unicode · escape
Available
ROT13 / Caesar
Rotate letters through the alphabet with a custom shift.
ROT13 · Caesar cipher
Available
UUID
Generate and inspect UUID v4, v7, and v1 identifiers.
UUID · GUID
Available
ULID
Generate lexicographically sortable ULIDs.
ULID · identifier
Available
Nano ID
Generate compact, URL-safe unique IDs.
Nano ID · identifier
Available
Hash
Create SHA-256 or SHA-512 digests locally.
SHA-256 · SHA-512
Available
JWT
Decode, verify, and generate JSON Web Tokens.
JWT · JSON Web Token
Available
Timestamps
Convert epoch, ISO 8601, and human dates.
epoch · unix time
Available
Password Generator
Generate strong, random passwords.
password · generator
Available
Passphrase Generator
Generate memorable, high-entropy passphrases.
passphrase · generator
Available
PIN Generator
Generate random numeric PINs.
PIN · generator
Available
API Key / Secret Generator
Generate random API keys and secrets.
API key · secret
Available
Cron Expression
Parse, explain, and preview cron schedules.
cron · crontab
Available
Data Converter
Convert and format JSON, YAML, TOML, and CSV.
JSON · YAML
Input stays in this browser.