中

Online Toolbox

41 tools, 5 categories. Runs entirely in your browser — zero data sent to any server.

100% client-side No account needed Privacy first Open source
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Common 6
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QR Code
Generate QR code images
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Regex Tester
Live match highlighting
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Timestamp
Unix ↔ human-readable date
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UUID
RFC 4122 v1/v4 generator
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Collage Maker
Grid collage maker, export PNG
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Text Diff
Line-by-line comparison
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Format 4
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JSON
Validate, format & minify
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XML
Validate & pretty-print
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YAML
Validate & visualize YAML
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SQL Formatter
Beautify SQL queries
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Encoding 3
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Base64
Encode / decode Base64
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HTML Encode
HTML entity encode/decode
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URL Encode
Percent-encode for URLs
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Hash 20
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MD5
128-bit message digest
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MD5 File
128-bit message digest
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SHA-1
160-bit secure hash
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SHA-1 File
160-bit secure hash
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SHA-224
SHA-2 family, 256-bit
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SHA-224 File
SHA-2 family, 256-bit
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SHA-256
SHA-2 family, 256-bit
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SHA-256 File
SHA-2 family, 256-bit
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SHA-384
SHA-2 family, 512-bit
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SHA-384 File
SHA-2 family, 512-bit
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SHA-512
SHA-2 family, 512-bit
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SHA-512 File
SHA-2 family, 512-bit
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SHA3-224
Keccak-based, 4 variants
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SHA3-224 File
Keccak-based, 4 variants
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SHA3-256
Keccak-based, 4 variants
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SHA3-256 File
Keccak-based, 4 variants
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SHA3-384
Keccak-based, 4 variants
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SHA3-384 File
Keccak-based, 4 variants
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SHA3-512
Keccak-based, 4 variants
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SHA3-512 File
Keccak-based, 4 variants
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Crypto 8
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AES Encrypt
AES encryption / decryption
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AES Decrypt
AES encryption / decryption
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DES Encrypt
DES encryption / decryption
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DES Decrypt
DES encryption / decryption
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Triple DES Encrypt
Triple DES encryption
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Triple DES Decrypt
Triple DES encryption
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RC4 Encrypt
RC4 stream cipher
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RC4 Decrypt
RC4 stream cipher