Developer Toolbox
Tools for JSON, time, encoding, networking, images, and text processing.
JSON
Format, minify, and validate JSON
Input
Formatting also validates the JSON structure.
JSON diff
Compare added, removed, and changed fields
Original JSON
New JSON
Differences
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Timestamp
Convert timestamps and date-times
Now—
Timestamp to date
Local time and ISO 8601 will appear here.
Date to timestamp
Seconds and milliseconds will appear here.
11 digits or fewer are read as seconds; longer values as milliseconds.
Base64
Unicode-safe encoding and decoding
Input
Output
URL encoding
Encode and decode URLs or parameters
Input
Output
CIDR calculator
Calculate network addresses and ranges
CIDR
Output
Supports IPv4 and IPv6 CIDR notation.
JWT decoder
Inspect headers, payloads, and time claims
JWT
Regex tester
Inspect matches, groups, and replacements
Input
Replacement
Matches · 0
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Replacement preview
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Text hash
Create SHA-256 / 384 / 512 hashes
Input
SHA-256 Output
The hexadecimal digest will appear here.
SHA hashes are one-way and cannot be decoded.
Identifiers
Generate UUIDs and random strings
UUID v4
Output
—
Secure random string
Output
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Generated with the browser's cryptographically secure random source.