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Cryptographic Toolkit

Hash. Encode. Verify.

Military-grade cryptographic tools that run entirely in your browser. Nothing leaves your machine.

Launch TerminalView Algorithms
fyHash Terminal
$
12Algorithms
ZeroUploads
100%Private
Why fyHash

Security tools that respect
your privacy.

Every tool runs locally using the Web Crypto API. No server calls, no data collection, no compromises.

Client-Side Processing

Every cryptographic operation executes directly in your browser using the Web Crypto API. Zero server uploads. Zero network requests. Your sensitive data never leaves your machine -- not even for a millisecond.

security.log
[INFO] Network requests: 0
[INFO] Data uploaded: 0 bytes
[INFO] Processing: local (WebCrypto)
[INFO] Status: SECURE

12 Hash Algorithms

MD5, SHA-1, SHA-256, SHA-384, SHA-512, SHA-3, and more. Generate and compare hashes across every major algorithm.

Encode & Decode

Base64, URL encoding, HTML entities, and Hex. Bidirectional transformations with a single click.

JWT Decoder

Decode, inspect headers and payloads, and verify JSON Web Tokens without exposing them to third-party services.

File Hashing

Drag and drop files for instant integrity verification. Compute checksums for downloads and deployments.

UUID Generator

Generate cryptographically secure v4 UUIDs instantly. Copy with one click for use in databases and APIs.

Algorithm Library

Every algorithm. Every format.

Browse the complete toolkit by category.

RecommendedSecure

SHA-256

256-bit digest

Secure

SHA-512

512-bit digest

Secure

SHA-384

384-bit digest

Secure

SHA-3

Keccak-based

Legacy

SHA-1

160-bit digest

Deprecated

MD5

128-bit digest

17 tools across 4 categories — all running client-side

Benchmarks

Algorithm Comparison

Compare security levels, output sizes, and relative performance across supported hash algorithms.

Deprecated
Legacy
Secure
Recommended
How It Works

Simple as 1-2-3.

No sign-ups, no installs. Just open the tool and start working.

01

Input Your Data

Type text, paste content, or drop a file. Hash any data format — strings, files, or binary data.

02

Select Algorithm

Choose from MD5, SHA-1, SHA-256, SHA-512, HMAC, and more. See security ratings for each.

03

Get Your Hash

Copy the hash output instantly. Compare hashes, verify file integrity, or decode encoded data.

No sign-up required
100% browser-based
Always free
Use Cases

Who Uses This? Everyone.

From professionals to students, real people solving real problems every day.

Developers

File integrity

Generate checksums to verify file downloads haven't been corrupted or tampered with.

Security Teams

Password hashing

Hash passwords with secure algorithms. Compare hashes to verify credentials safely.

DevOps

Checksum verification

Verify deployment artifacts, container images, and configuration files with hash comparison.

Crypto Engineers

HMAC signing

Generate HMAC signatures for API authentication and message integrity verification.

Forensics

Evidence hashing

Create tamper-proof hash records of digital evidence for legal proceedings.

API Developers

JWT debugging

Decode and inspect JWT tokens. Verify signatures and check expiration claims.

FAQ

Frequently Asked Questions.

Still have questions? Reach out to us anytime.

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Client-Side
0
Bytes Uploaded
0
Algorithms
Zero Trust Architecture

Your Data Never Leaves
Your Browser.

Stop pasting sensitive data into random online tools. Use cryptographic utilities that never phone home.

Launch Security Tools

Trusted by developers. Powered by Web Crypto API.