Evaluation & Testing

Ciphey

Automatically decrypt encryptions without knowing the key or cipher

Status
Generally available
Last checked
Checked · Oct 15, 2026
License
Open source
Pricing
Free tier · from $0

What it is

Ciphey is an open-source tool that automatically decrypts various types of encryption, decodes encodings, and cracks hashes. It's useful for security researchers and developers who need to understand encrypted data.

Ciphey stands out as an open-source, local tool that automates the process of decrypting various encryption methods without prior knowledge of keys or ciphers.

When it fits — and when it doesn’t

A good fit for

  • Security teams needing to decrypt unknown ciphers for analysis

  • Researchers studying the effectiveness of different encryption methods

  • Developers who need a tool to test and validate their own encryption implementations

Look elsewhere if

  • Real-time decryption in high-throughput environments (designed for batch processing)

  • Users requiring a web-based interface or cloud service (local library only)

Known weaknesses

Each one links to the public issue, changelog or docs page it came from, where we have one.

  1. 01

    Limited support for advanced encryption algorithms

    Ciphey's decryption capabilities are primarily focused on classical and basic modern ciphers, lacking support for more complex or contemporary encryption standards.

  2. 02

    Performance issues with large datasets

    The tool can be slow when processing large volumes of encrypted data due to the computational complexity involved in decryption attempts.

  3. 03

    Small and relatively inactive community

    GitHub activity and contributor numbers indicate a limited user base, which could result in slower issue resolution and feature development.

  4. 04

    Poor documentation for advanced use cases

    While basic usage is covered, detailed explanations for more complex configurations or integration scenarios are lacking.

  5. 05

    Dependency on external libraries that may introduce vulnerabilities

    Ciphey relies on third-party Python packages which might have security flaws, impacting the overall reliability and safety of Ciphey.

What it does well

  • Automatic decryption of various ciphers without needing the key

  • Decoding of different types of encodings

  • Cracking of hashes

  • Extensive support for multiple encryption algorithms and techniques

Pricing

Free tier
YesOpen source — free to use
Paid from
$0
Model
Flat rate
Enterprise plan
No

Pricing not independently confirmed — check the vendor’s page.

Performance benchmarks

How Fast Is It?

Set up Ciphey

Setup steps, common gotchas and what to check after 30 days.

Open the setup guide →
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