YoSin Tools

YoSin Tools

Free, fast, privacy-first online tools for hashing, checksums, and cryptography. MD5, SHA256, SHA3, Keccak, RIPEMD, BLAKE2, CRC — everything runs in your browser. Nothing ever leaves your device.

60+ tools
100% browser-based
0 uploads
Free forever
🔒 All computations happen locally in your browser. No files, text, or keys are ever sent to a server. Your data stays on your device.

Most Popular Tools

CRC

1 tool
CR

CRC

CRC (100+ models)

MD Family

6 tools
MD

MD2 / MD4 / MD5

MD2 MD2 File MD4 MD4 File MD5 MD5 File

SHA-1

2 tools
S1

SHA1

SHA1 SHA1 File

SHA-2

14 tools
S2

SHA-256 Family

SHA-224 SHA-224 File SHA-256 SHA-256 File Double SHA-256
S5

SHA-512 Family

SHA-384 SHA-384 File SHA-512 SHA-512 File SHA-512/224 SHA-512/224 File SHA-512/256 SHA-512/256 File

SHA-3 & Keccak

20 tools
S3

SHA-3

SHA3-224 SHA3-224 File SHA3-256 SHA3-256 File SHA3-384 SHA3-384 File SHA3-512 SHA3-512 File
KK

Keccak

Keccak-224 Keccak-224 File Keccak-256 Keccak-256 File Keccak-384 Keccak-384 File Keccak-512 Keccak-512 File
SK

SHAKE / cSHAKE / KMAC

SHAKE128 SHAKE128 File SHAKE256 SHAKE256 File cSHAKE128 cSHAKE128 File cSHAKE256 cSHAKE256 File KMAC128 KMAC128 File KMAC256 KMAC256 File

RIPEMD

8 tools
RM

RIPEMD

RIPEMD-128 RIPEMD-128 File RIPEMD-160 RIPEMD-160 File RIPEMD-256 RIPEMD-256 File RIPEMD-320 RIPEMD-320 File

BLAKE

4 tools
BL

BLAKE2

BLAKE2b BLAKE2b File BLAKE2s BLAKE2s File
B3

BLAKE3

Coming soon
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Encoding & Decoding

Base64
Base64 Encode Base64 Decode
Hex (Base16)
Hex Encode Hex Decode
Web
HTML Encode HTML Decode URL Encode URL Decode

Formatters & Validators

JSON
JSON Formatter JSON Minifier JSON Validator

String Converters

Case
Case Converter

Cryptography

AES
AES Encrypt AES Decrypt

About YoSin Tools

YoSin Tools is a free, open collection of browser-based developer utilities maintained by Yogendra Singh. Every tool runs entirely in your browser using JavaScript — no file is ever uploaded, no data is ever sent to a server. Your computations are completely private.

The toolkit covers all major cryptographic hash functions: MD5, SHA-1, SHA-2 (SHA-224, SHA-256, SHA-384, SHA-512 and truncated variants), SHA-3, Keccak, SHAKE, cSHAKE, KMAC, RIPEMD (128/160/256/320), and BLAKE2 (b and s). Plus CRC checksums with 100+ predefined models.

All tools support multiple input and output encodings — UTF-8, UTF-16, Hex, Base64, and dozens of legacy character sets. HMAC variants are available for all keyed-hash applications including JWT signing, webhook verification, and API authentication. File hashing tools let you verify download integrity without ever uploading the file.