Encode or decode Base64 and Base64URL, check the format, or repair missing padding.
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Encoding, data conversion and security checks.
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Encoding and dataCommon encoding, byte, and structured data conversions.
Encode or decode URLs, parameters and form values, one line or a batch at a time.
Open toolSecurity and digestsToken parsing, digests, signatures, and web security checks.
Decode JWT fields and timestamps, and verify RS256, RS384 or RS512 signatures with an RSA public key.
Open toolParse Cookie and Set-Cookie headers and check expiry, scope and security attributes.
Open toolPaste HTTP response headers to check security policies, missing headers and cookie attributes.
Open toolCheck whether a cross-origin request is allowed using its origin, method and response headers.
Open toolCalculate SHA-1, SHA-256, SHA-384 and SHA-512 digests and compare them with an expected hash.
Open toolCalculate HMAC values and check webhook signatures using presets for GitHub, Stripe, Slack and other platforms.
Open toolDerive Bitcoin and Ethereum addresses, convert WIF, check address formats, and browse key numbers.
Open toolCalculate CVSS 1.0 through 4.0 scores, load vectors, compare metrics and export batches.
Open toolNetwork and debuggingHelpers for URLs, addresses, HTTP behavior, and network troubleshooting.
Inspect a URL's host, path and parameters, including duplicates, encoding and sensitive fields.
Open toolText processingFormat, transform, compare, and inspect text, logs, and data files.
Format or minify JSON, find fields in a tree view, and copy node paths.
Open tool