AES-256-GCM Encrypt / Decrypt

Encrypt and decrypt text with AES-GCM and a password (PBKDF2).

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AES-256-GCM with a PBKDF2-derived key (200k iterations, SHA-256). Salt + IV are packed into the output, so the same password decrypts it later. 100% in-browser — nothing is uploaded.

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Reach for AES-256-GCM Encrypt / Decrypt whenever you need to encrypt and decrypt text with AES-GCM and a password (PBKDF2). Developers and DevOps engineers use it to spin up keys, tokens and identifiers for local testing, CI pipelines, JWT signing and API integrations in seconds.

How to embed AES-256-GCM Encrypt / Decrypt on your website

Add this free tool to your own site, blog or intranet — it's 100% free to embed. Paste this snippet where you want the tool to appear; it loads a clean, self-contained version with no ads or navigation.

<iframe src="https://tooljolt.com/embed/aes-gcm-encrypt" title="AES-256-GCM Encrypt / Decrypt" width="100%" height="640" style="border:1px solid #e5e7eb;border-radius:12px" loading="lazy"></iframe>

Use AES-256-GCM Encrypt / Decrypt to encrypt a note or secret with just a password and share it safely. AES-256-GCM runs entirely in your browser, so it's a free, private way to protect sensitive text without any account or app.

About AES-256-GCM Encrypt / Decrypt

AES-256-GCM Encrypt / Decrypt encrypt and decrypt text with AES-GCM and a password (PBKDF2) using AES-256-GCM with a key derived from your password — entirely in your browser. Encrypt a note or secret, share the ciphertext anywhere, and decrypt it later with the same password. Like every ToolJolt utility it runs 100% in your browser — no sign-up, no upload, and nothing ever sent to a server, so it's safe for proprietary code and confidential data.

How to use AES-256-GCM Encrypt / Decrypt

1Enter a password and your message.
2Click Encrypt to get a shareable ciphertext string.
3To reverse it, paste the ciphertext, enter the same password and click Decrypt.
4Everything happens locally in your browser.

Why use AES-256-GCM Encrypt / Decrypt?

✓AES-256-GCM authenticated encryption
✓Key derived from your password with PBKDF2
✓Salt and IV packed in for easy decryption later
✓Runs offline — nothing is ever uploaded

Frequently asked questions

How secure is AES-256-GCM Encrypt / Decrypt?+

It uses AES-256-GCM (authenticated encryption) with a key stretched from your password via PBKDF2 (200,000 iterations, SHA-256) — the same primitives trusted in production. Strength still depends on choosing a strong password.

Can I decrypt on another device?+

Yes. The salt and IV are packed into the output, so anyone with the ciphertext and the correct password can decrypt it in AES-256-GCM Encrypt / Decrypt on any device.

Is AES-256-GCM Encrypt / Decrypt free?+

Yes. AES-256-GCM Encrypt / Decrypt is completely free with no sign-up, no account, no usage limits and no watermarks. Use it as often as you like.

Does AES-256-GCM Encrypt / Decrypt send my data to a server?+

No. AES-256-GCM Encrypt / Decrypt runs entirely in your browser with JavaScript — your input never leaves your device, which makes it safe for private API payloads, schemas and source code.

Embed AES-256-GCM Encrypt / Decrypt on your website

Want AES-256-GCM Encrypt / Decrypton your own site? Paste this snippet into any HTML page — it's free, with no API key or sign-up. The tool loads in an iframe and keeps working exactly as it does here.

Embed code

<iframe src="https://tooljolt.com/tools/aes-gcm-encrypt" width="100%" height="640" style="border:1px solid #e5e7eb;border-radius:12px;max-width:680px" title="AES-256-GCM Encrypt / Decrypt — ToolJolt" loading="lazy"></iframe>