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Learn and practise programming in your browser. Pick a language: write code, run it in a real terminal and follow the lessons step by step.
Why Shiklo Tools?
Simple, private tools that just work — right in your browser.
- Private Everything runs in your browser. Files are never uploaded.
- Secure Encrypted HTTPS connection, and nothing you open is stored on our servers.
- No login required No account, no sign-up, no email. Just open a tool and use it.
- Fast No upload or download wait — results appear instantly.
- Free All tools are free to use, with no limits.
- Works everywhere Phone, tablet or computer, in any modern browser.
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Frequently asked questions
Are my files or text uploaded anywhere?
No. Every tool runs inside your browser on your own device. Nothing you enter or open is sent to a server.
Do I need to create an account or log in?
No login is required. There are no accounts — open any tool and start using it straight away.
Are the tools really free?
Yes. All tools are free, with no limits or watermarks. The site is supported by ads.
Does it work on my phone?
Yes. The tools work in any modern browser on phones, tablets and computers.
Can I use the tools offline?
Once a tool has loaded it does its work on your device, so it keeps working even if your connection drops.
Which file types are supported?
PDF, Word, Excel, PowerPoint, OpenDocument and RTF documents, JPG, PNG, WebP, HEIC, AVIF, GIF and BMP images, MP4, MOV, WebM and MKV videos, MP3, WAV, M4A, OGG and FLAC audio, ZIP, 7z, RAR, TAR and GZIP archives, CSV, JSON, XML and plain text. Each tool lists exactly what it opens.
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PGP Key Generator
Create an OpenPGP key pair (ECC Curve25519 or RSA 4096) with a passphrase, expiry and revocation certificate — for email and file encryption.
OpenPGP keys let people send you encrypted email and files that only you can read, and let you sign messages and software so others can check they really came from you. Journalists, security teams, open-source maintainers and anyone with a security.txt file use them. Creating one normally means installing GnuPG and working on the command line.
This generator creates a complete OpenPGP key pair in your browser with OpenPGP.js: enter your name and email, choose a modern ECC Curve25519 key or a classic RSA 4096 key, set an expiry date and a strong passphrase, and press Generate. You get your public key to share, your private key protected by the passphrase, and a revocation certificate to cancel the key if it is ever lost or stolen — all as standard ASCII-armored files that GnuPG, Kleopatra, Thunderbird, Proton Mail, Mailvelope and other OpenPGP apps import.
How to use PGP Key Generator
- Enter your name and email address.
- Choose a passphrase of at least 12 characters and type it twice.
- Choose the key type and when it should expire.
- Press Generate keys and download the public key, private key and revocation certificate.
Features
- ECC Curve25519 (recommended) or RSA 4096 keys.
- Private key protected by your passphrase.
- Expiry after 1, 2 or 5 years, or never.
- Revocation certificate included.
- ASCII-armored .asc files for any OpenPGP app.
- Key fingerprint shown.
- OpenPGP.js in your browser; nothing is sent.
The three files
A key pair comes with three pieces, each with a different purpose. Download all three and keep the private ones safe.
| File | What it is for | Share it? |
|---|---|---|
| Public key | Others encrypt to you and check your signatures | Yes — publish it |
| Private key | You decrypt and sign; protected by your passphrase | Never |
| Revocation certificate | Cancels the key if it is lost or stolen | Only when revoking |
ECC or RSA?
Curve25519 keys (Ed25519 for signing and X25519 for encryption) are the modern default in GnuPG: small, fast and strong. RSA 4096 keys are larger and slower to generate but work with very old software. Unless you need compatibility with an old system, choose ECC. Generating an RSA 4096 key in the browser can take several seconds.
Expiry and passphrase
An expiry date is a safety net: if you lose access to the key, it stops being used automatically. You can extend the expiry later with your OpenPGP app as long as you have the private key, so a two-year expiry is a common choice. The passphrase encrypts the private key, so a stolen copy is useless without it; use at least 12 characters, ideally a passphrase of several random words, and keep it in a password manager.
Using your keys
Import the private key into your OpenPGP app — GnuPG with gpg --import, Kleopatra, Thunderbird's OpenPGP settings, or Mailvelope. Share the public key by email, on your website, in your security.txt file, or on a key server such as keys.openpgp.org, and tell people your fingerprint through a separate channel so they can check they have the right key. Store the revocation certificate offline, for example printed or on a USB stick.
Private
Keys are generated on your device by OpenPGP.js, an open-source library maintained by Proton and audited independently, used here unmodified under its LGPL licence. Nothing — not your passphrase, not your keys — is sent anywhere or stored after you leave the page. For a security.txt file that lists your key, use the security.txt Generator.
Frequently asked questions
What is a key fingerprint?
A short code that identifies your key; others compare it to make sure they have the right public key.
How do I create a PGP key?
Enter your name, email and passphrase, choose the key type and press Generate keys.
Should I choose ECC or RSA?
ECC Curve25519, unless you need compatibility with very old software.
Can I use the key with GnuPG or Thunderbird?
Yes. The .asc files import into GnuPG, Kleopatra, Thunderbird and other OpenPGP apps.
What is the revocation certificate for?
It cancels your key if the private key is lost or stolen. Keep it safe and offline.
Can I change the expiry later?
Yes, with your OpenPGP app, as long as you have the private key.
Is my passphrase sent anywhere?
No. Keys are generated in your browser.
Where should I publish my public key?
On your website, in your security.txt, in email signatures or on keys.openpgp.org.
Related tools
RSA Key GeneratorGenerate RSA key pairs (2048, 3072 or 4096 bits) as PEM, OpenSSH and JWK, for signing or encryption — made on your device.
security.txt GeneratorCreate a valid security.txt file (RFC 9116) so researchers know how to report vulnerabilities — with checks for every field.
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Password GeneratorGenerate strong random passwords and memorable passphrases. Choose length and characters; see entropy and crack time. Never stored or sent.
Hash GeneratorGenerate MD5, SHA-1, SHA-256, SHA-512, SHA-3, BLAKE3 and CRC32 hashes of text or files of any size, with HMAC and checksum comparison. Private.
Random Bytes GeneratorGenerate cryptographically secure random bytes for keys, salts, nonces and tokens — as hex, Base64, Base64url, byte arrays or a file.