Alternatives to Kryptor
Modern alternative to GPG
Kryptor ranks #6 of 11 in File encryption tools, with an Alt Score of 65. It is licensed under GPL-3.0, free from Free and available on Windows, macOS and Linux. 9 of 9 checklist rows are verified against a public source.
Individuals and developers who want to encrypt files or sign/verify them from the command line without relying on GPG's complexity, similar to age or Minisign users who value simplicity and strong defaults.
A free, open-source, cross-platform CLI (Windows, Linux, macOS) for encrypting files and directories with passphrases, symmetric keys, or asymmetric key pairs. Uses modern primitives (ChaCha20-Poly1305, Curve25519/Ed25519, Argon2), with optional filename encryption and post-quantum hybrid key exchange. Also supports Ed25519 digital signatures for verifying file authenticity. Output files are designed to look like random data, minimizing metadata leakage.
You run kryptor commands to generate short, shareable key pairs, then encrypt or sign files by pointing the tool at them with the relevant key or passphrase; recipients decrypt or verify using their own key pair or the shared passphrase. It's built on libsodium/Monocypher and licensed under GPLv3.
Why people leave Kryptor
Dashed reasons are sourced facts; the rest are opinions. Vendors can dispute.
Sign in to add a reason — new reasons go through moderation before appearing.
Ranked alternatives
Ordered by Alt Score. Click any score to see the breakdown.
AxCrypt is a file and folder encryption app that lets users right-click to encrypt individual files with AES-128/256, rather than mounting a container or volume.
BestCrypt Container Encryption, from Finnish vendor Jetico, creates mountable encrypted containers on Windows, macOS, Linux and Android, similar in concept to VeraCrypt.
AES Crypt is a free, open-source utility (since 2005) for encrypting individual files with the AES-256 cipher, available as both a GUI (right-click integration) and a command-line tool on Windows, mac.
NordLocker, from the makers of NordVPN, creates password-protected encrypted folders (lockers) on the user's device using AES-256 and Argon2, with drag-and-drop file/folder encryption and optional end.
Tomb (the Crypto Undertaker), maintained by the Dyne.org Foundation since 2007, is a lightweight shell-script CLI that wraps Linux's cryptsetup/LUKS to create, open and manage encrypted volume files (.
DiskCryptor is an open-source Windows encryption tool that can encrypt entire disks, partitions, external drives and file-based containers using AES, Twofish and Serpent.
Feature comparison
How Kryptor compares with its alternatives, feature by feature.
+ Add app
| File encryption tools checklist | Kryptor | VeraCrypt | AxCrypt | BestCrypt Container Encryption | AES Crypt | age |
|---|---|---|---|---|---|---|
| Pricing model | ||||||
| Starts at | ||||||
| License | ||||||
| Platforms | ||||||
| Container / volume encryption | ||||||
| Per-file encryption | ||||||
| Cloud-friendly (per-file sync) | ||||||
| Cross-platform | ||||||
| Open source & audited | ||||||
| Hidden volumes | ||||||
| Key files support | ||||||
| Password strength enforcement | ||||||
| CLI |
Every fact and feature listed for Kryptor is verified against its own pages. Each alternative is sourced on its own page.
-
License GPL-3.0 verified 2026-07-08
GNU General Public License Version 3
https://github.com/samuel-lucas6/Kryptor/blob/master/LICENSE -
Pricing model Free verified 2026-07-08
A simple, modern, and secure file encryption and signing tool for Windows, Linux, and macOS
https://github.com/samuel-lucas6/Kryptor -
Starts at Free verified 2026-07-08
GPL-3.0 license
https://github.com/samuel-lucas6/Kryptor -
Platforms Windows, macOS, Linux verified 2026-07-08
A simple, modern, and secure file encryption and signing tool for Windows, Linux, and macOS
https://github.com/samuel-lucas6/Kryptor -
Status active verified 2026-07-08
Not archived; last release Jan 2025.
Latest Release: v4.1.1 (January 12, 2025)
https://github.com/samuel-lucas6/Kryptor -
Container / volume encryption No verified 2026-07-08
Per-file/directory; no container/volume.
Encrypt multiple files/directories with a passphrase, symmetric key, or asymmetric keys.
https://www.kryptor.co.uk/features -
Per-file encryption Yes verified 2026-07-08
Encrypt multiple files/directories with a passphrase, symmetric key, or asymmetric keys.
https://www.kryptor.co.uk/features -
Cloud-friendly (per-file sync) Yes verified 2026-07-08
Per-file output syncs cleanly.
Encrypt multiple files/directories with a passphrase, symmetric key, or asymmetric keys.
https://www.kryptor.co.uk/features -
Cross-platform Yes verified 2026-07-08
A simple, modern, and secure file encryption and signing tool for Windows, Linux, and macOS
https://github.com/samuel-lucas6/Kryptor -
Open source & audited Partial verified 2026-07-08
OSS; no formal audit of Kryptor itself (underlying libsodium is audited).
GPL-3.0 license
https://github.com/samuel-lucas6/Kryptor -
Hidden volumes No verified 2026-07-08
No hidden-volume feature.
A simple, modern, and secure file encryption and signing tool
https://github.com/samuel-lucas6/Kryptor -
Key files support Yes verified 2026-07-08
Keyfiles must be at least {Constants.KeyfileLength} bytes long.
https://github.com/samuel-lucas6/Kryptor/blob/master/src/Kryptor/Validation/FileEncryptionValidation.cs -
Password strength enforcement No verified 2026-07-08
No minimum-length/complexity enforcement in source.
Enter a passphrase (leave empty for a random one):
https://github.com/samuel-lucas6/Kryptor/blob/master/src/Kryptor/UI/PassphrasePrompt.cs -
CLI Yes verified 2026-07-08
UNIX style passphrase entry and random passphrase generation.
https://www.kryptor.co.uk/features
FAQ
Yes. VeraCrypt, AxCrypt and age have a free tier or are fully free. Free-tier limits in the comparison table are verified and dated.
VeraCrypt, age and Cryptomator — every license claim links its source.