Security & Crypto StudiosRuns locally in your browser · No signup

Hash, Bcrypt, AES & Keypair Studio

Compute MD5/SHA-1/256/384/512 text & file checksums, sign HMACs, benchmark & verify bcrypt hashes, encrypt with PBKDF2 AES-256-GCM, and generate RSA-OAEP/ECDSA PEM & JWK keypairs.

100% Local Browser Engine · Zero Uploads3 Workspaces

MD5 / SHA Digests, File Checksums & HMAC: Compute MD5, SHA-1, SHA-256, SHA-384, and SHA-512 digests on text or local files, verify checksums, and sign HMACs.

Input Data & Optional HMAC Key
Computed Digests
MD5Legacy checksum only
—
SHA-1Legacy checksum only
—
SHA-256
—
SHA-384
—
SHA-512
—
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What is Hash, Bcrypt, AES & Keypair Studio?

Hash, HMAC & Cipher Studio unifies text & chunked local file checksums (MD5, SHA-1, SHA-256, SHA-384, SHA-512), HMAC signing, salted $2b$ bcrypt hashing & verification, PBKDF2 + AES-256-GCM authenticated encryption, and Web Crypto ECDSA P-256 / RSA-OAEP PEM keypair generation.

How to use Hash, Bcrypt, AES & Keypair Studio in 3 steps
  1. 1

    Select Digests/HMAC, Bcrypt Lab, or AES-GCM & Keypairs

    Paste text, drop a local installer binary, or enter a passphrase.

  2. 2

    Compute digests, seal envelopes, or mint PEM keys

    Verify published SHA-256 hashes, benchmark bcrypt cost rounds, or encrypt notes.

  3. 3

    Copy verified hashes or PEM keys

    All cryptographic material stays strictly in browser RAM.

Key features and benefits
  • Consolidates file checksums, HMAC, bcrypt, AES-256-GCM, and RSA/ECDSA PEM keygen in one security studio.
  • Uses authenticated AES-256-GCM with 120,000 PBKDF2-SHA256 iterations and random 96-bit IVs.
Common use cases

Verifying downloaded ISO/ZIP SHA-256 checksums locally.

Generating ES256 (ECDSA P-256) PKCS#8 / SPKI PEM keypairs for JWT signing.

Why browser-based works better

Hash, Bcrypt, AES & Keypair Studio consolidates related security & crypto studios workflows into one cohesive, multi-mode browser studio — eliminating tab-hopping across fragmented single-purpose tools.

Every mode executes locally using Web APIs and audited client-side libraries, so private files, tokens, and source code never leave your device.

You might also need

Continue this workflow with nearby browser-based tools so you can validate, convert, and ship output without context switching.

Hash, Bcrypt, AES & Keypair Studio FAQs

Quick answers about the workflow, privacy, and where this tool fits in a broader job.

Does AES-256-GCM detect tampering?

Yes. GCM includes a 128-bit authentication tag; any modified ciphertext byte causes decryption to fail cleanly.

Related free tools

Keep the workflow moving with nearby tools that solve the next likely step.

Built and maintained by

Free AI Tools Engineering Team

Browser Tooling & Web Platform Engineering

Last updated:

Tested in Chrome, Firefox, and Safari on desktop and mobile.

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