Software Alternatives, Accelerators & Startups

Axcrypt VS ContractShield.dev

Compare Axcrypt VS ContractShield.dev and see what are their differences

Axcrypt logo Axcrypt

AxCrypt is a powerful, easy-to-use encryption tool that protects your files, passwords, and personal information with strong AES-256 security. Available on Windows, Mac, Android, and iOS, it keeps your data safe wherever you go.
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ContractShield.dev logo ContractShield.dev

Open-source API security middleware โ€” contract-first validation beyond the WAF.
  • Axcrypt App HomeScreen
    App HomeScreen //
    2026-06-25
  • Axcrypt AxCrypt HomeScreen Business
    AxCrypt HomeScreen Business //
    2026-06-25
  • Axcrypt AxCrypt Google Drive - Premium Subscription
    AxCrypt Google Drive - Premium Subscription //
    2026-06-25
  • Axcrypt Text Encryption
    Text Encryption //
    2026-06-25
  • Axcrypt Secured Messenger- Premium Subscription
    Secured Messenger- Premium Subscription //
    2026-06-25
  • Axcrypt Vault Encryption - Business Subcription
    Vault Encryption - Business Subcription //
    2026-06-25
  • Axcrypt Share Access- Business
    Share Access- Business //
    2026-06-25
  • Axcrypt Share Access- Premium
    Share Access- Premium //
    2026-06-25

AxCrypt is an award-winning encryption software that provides strong, simple and reliable encryption solution. Since its inception in 2001, it has grown to be one of the worldโ€™s most popular encryption software with over 20 million downloads worldwide. AxCrypt's mission is to provide encryption solutions to individuals and organizations in the simplest manner, so that we can ensure the convenient implementation and usage of our software for everyone.

It is available in English, French, German, Italian, Korean, Polish, Russian, Spanish, Swedish, Mandarin and more.

AxCrypt offers a Premium subscription (for individuals) and Business subscription (for companies) with a range of exclusive features like AES-256 encryption, Key sharing, Secured Folders, Cloud Storage Awareness, Password Management, File Wipe, Anonymous File Names, Password Generator, and more. See more about AxCrypt's subscription plans here: https://axcrypt.net/pricing

  • New feature for Business subscription: Master Key enables business administrators to recover files of the business members, eliminating the risk of losing access to critical files due to employees leaving or forgetting their passwords.
  • Affiliate Program where anyone can earn 25% commission.

AxCrypt has recently released new content analyzing how different industries can implement AxCrypt Business, covering a range of industries from Technology to Education to Healthcare. You can read more here: https://axcrypt.net/industries

  • ContractShield.dev Monitoring exemple
    Monitoring exemple //
    2026-02-16
  • ContractShield.dev Gateway
    Gateway //
    2026-02-16
  • ContractShield.dev Multi-platform
    Multi-platform //
    2026-02-16
  • ContractShield.dev Boundary
    Boundary //
    2026-02-16

ContractShield is open-source runtime API security middleware that validates every API request against your OpenAPI contract. It catches business logic attacks โ€” authentication bypasses, BOLA/IDOR, parameter tampering, prototype pollution โ€” that traditional WAFs and API gateways miss because they only inspect payloads, not business rules. Think of it this way: API gateways are bouncers checking IDs at the door. ContractShield enforces the business rules inside the venue.

How it works:

Drop ContractShield into your API as middleware. It reads your OpenAPI specification and enforces it at runtime โ€” every request is validated against your contract before it reaches your application logic. Undocumented endpoints get blocked. Missing authentication gets rejected. Schema violations get caught. No agents, no sidecars, no infrastructure changes. Key capabilities:

  • Schema-enforced authentication and authorization
  • Deny-by-default for undocumented endpoints
  • CEL (Common Expression Language) invariants for custom business rules
  • Sink-aware RASP protection for injection detection (Pro)
  • Real-time blocking or monitoring mode
  • 5-minute integration with zero infrastructure changes

Multi-platform support:

  • Node.js / Express / Fastify (npm: @cshield/core)
  • Python / FastAPI / Flask (PyPI: contractshield)
  • Java / Spring Boot (Maven: dev.contractshield)

Covering ~80% of the API development market.

Open-core model:

Core features are Apache 2.0 licensed. Advanced capabilities like sink-aware RASP, Learning Mode, and BOLA auto-detection are available under commercial license.

Security certifications:

OWASP ASVS Level 1 compliant, OpenSSF Scorecard, OpenSSF Best Practices Passing, SLSA Build Level 1 provenance, CodeQL scanning.

ContractShield also offers Penetration Testing as a Service (PTaaS) for organizations that need expert-led API security assessments alongside automated protection.

Axcrypt

$ Details
freemium
Platforms
Windows MacOS Android iOS
Release Date
-
Startup details
Country
Sweden
State
Stockholm
City
Stockholm
Founder(s)
Zebastian Victorin
Employees
20 - 49

ContractShield.dev

$ Details
freemium
Platforms
Python Java Node JS Linux MacOS Windows Azure AWS Docker
Release Date
2026 January
Startup details
Country
Switzerland
Founder(s)
David Martin
Employees
1 - 9

Axcrypt features and specs

  • Strong Encryption
    AxCrypt provides AES-256 bit encryption, which is highly secure and is widely recognized as one of the strongest encryption standards.
  • User-Friendly Interface
    AxCrypt has a clean and intuitive interface which makes it easy for users to navigate and perform encryption tasks without extensive technical knowledge.
  • Cloud Storage Integration
    The software seamlessly integrates with popular cloud storage services such as Dropbox and Google Drive, making it easy to encrypt and share files stored on these platforms.
  • Key Sharing
    AxCrypt allows users to share encrypted files with others securely by sharing decryption keys, making collaboration easy even with sensitive data.
  • Cross-Platform Availability
    AxCrypt is available on multiple operating systems including Windows, macOS, Android, and iOS, providing flexibility for users across different devices.
  • Text Encryption/Decryption
    AxCryptโ€™s Text Encryption lets you instantly encrypt or decrypt any text using AES-256. Protect notes, passwords, and messages easily without creating files.
  • Master Key
    Enable business administrators to recover lost files
  • Group Management
    Add or remove group members, assign group admins, and administer file access control with ease.
  • Group File Sharing
    Easily share files with entire groups at once with utmost security.
  • Group Master Key
    Enable distinct Masterkey for each user group with granular access control.
  • Group Password Sharing
    Seamlessly share important credentials with all the members in a group, at once.
  • Secured Messenger
    Ensure private, secure communication across devices with AES-256 encryption for intended recipients.
  • Secure sharing
    Securely share encrypted passwords, card details, and notes
  • Create User Groups
    Create and manage user groups within your business for efficient departmentalization.
  • Mobile Encryption
    Encrypt and decrypt files on the phone, from anywhere and at any time
  • Secured Folders
    Automatically secure new files in designated folders with a single click
  • Include Subfolders
    Operate on all subfolders with Secured Folders and other operations
  • File Wipe
    Safe removal of files
  • Password Management
    Keep all your passwords safe.

ContractShield.dev features and specs

  • OpenAPI Contract Validation
    Validates every request against your OpenAPI/Swagger specification
  • Deny-by-Default Mode
    Blocks undocumented endpoints automatically
  • Schema-Enforced Authentication
    Rejects requests missing required auth headers
  • CEL Policy Engine
    Custom business rules via Common Expression Language
  • OWASP API Top 10 Coverage
    Protects against BOLA, broken auth, injection, mass assignment
  • Runtime Blocking & Monitoring
    Switch between blocking (403) and audit-only modes
  • Sink-Aware RASP Protection
    Deep injection detection at code level (Pro)
  • Zero Infrastructure Changes
    Standard middleware โ€” no agents, sidecars, or proxies
  • 5-Minute Integration
    One package install, one line of config
  • Open Source Core
    Apache 2.0 licensed, fully auditable
  • Multi-Platform Support
    Node.js, Python, Java โ€” covers ~80% of API dev market
  • Security Certified
    OWASP ASVS Level 1, OpenSSF Scorecard, SLSA Build Level 1

Analysis of ContractShield.dev

Overall verdict

  • I don't have verified information about ContractShield.dev (contractshield.dev) to assess its quality, features, pricing, or reputation. I cannot confirm whether this is a legitimate, established, or well-regarded product since it may be a newer, niche, or unindexed service not covered in my training data.

Why this product is good

  • No verifiable details available about its feature set, security practices, or track record
  • Cannot confirm company legitimacy, team credentials, or customer reviews
  • Unable to assess pricing, support quality, or contract audit accuracy without direct access or documented sources
  • Recommend checking the site directly, looking for user reviews, testimonials, and checking domain registration/company history before trusting it with sensitive contract data

Recommended for

  • Users should independently verify this service through direct research, third-party reviews, and security audits before use
  • Not recommended to rely on this assessment alone for any legal, financial, or contract-related decisions

Axcrypt videos

Free encryption software for windows AxCrypt

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ContractShield.dev videos

No ContractShield.dev videos yet. You could help us improve this page by suggesting one.

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Category Popularity

0-100% (relative to Axcrypt and ContractShield.dev)
Security & Privacy
100 100%
0% 0
Cyber Security
0 0%
100% 100
File Encryption
100 100%
0% 0
API Tools
0 0%
100% 100

Questions & Answers

As answered by people managing Axcrypt and ContractShield.dev.

What makes your product unique?

Axcrypt's answer

1. Truly Easy File Encryption

AxCrypt keeps encryption simpleโ€”right-click a file, encrypt it, and youโ€™re done. No complicated setup, no confusing options.

2. Automatic Cloud Protection

It works seamlessly with Google Drive, OneDrive, Dropbox, and other cloud folders. Files get encrypted before they sync, keeping your cloud data safe.

3. Built-In Password Manager

Unlike most encryption tools, AxCrypt includes a secure password manager, so you can protect documents and store passwords in the same app.

4. Strong AES-256 Security

AxCrypt uses industry-standard AES-256 encryption with modern key handlingโ€”trusted by professionals for protecting sensitive data.

5. Secure File Sharing

You can share encrypted files with others securely using their AxCrypt ID, without exposing passwords.

6. Multi-platform Support

Available on Windows, Mac, Android, and iOS, so your encrypted files stay accessible anywhere.

7. Proven and Trusted

AxCrypt has been around for years, is widely reviewed, and is known for its stability and reliabilityโ€”making it trusted by individuals and companies.

8. Open and Transparent

AxCryptโ€™s core design and encryption approach are transparent, unlike some alternatives that lack independent verification or a track record.

ContractShield.dev's answer:

ContractShield is the only open-source middleware that enforces your OpenAPI contract at runtime โ€” not just for documentation, but as a security policy.Most API security tools either scan for vulnerabilities (shift-left testing) or inspect payloads for known attack patterns (WAFs). ContractShield does neither. It sits inside your application and validates every request against what your API should do, not what attacks look like.

  • Deny-by-default: if an endpoint isn't in your OpenAPI spec, it doesn't exist
  • Schema-enforced auth: missing authentication is blocked regardless of whether your app forgot to check
  • CEL invariants: custom business rules that execute on every request
  • Zero infrastructure changes: standard middleware, 5-minute integration

The result: it catches business logic attacks โ€” authentication bypasses, BOLA/IDOR, parameter tampering, prototype pollution โ€” that produce perfectly valid HTTP requests every WAF in the world allows through.

Why should a person choose your product over its competitors?

Axcrypt's answer

  • Choose AxCrypt for unmatched simplicity with real AES-256 security.

  • Pick AxCrypt when you want encryption that just worksโ€”right-click and protect.

  • Go with AxCrypt for automatic cloud-safe protection across all your devices.

  • Use AxCrypt to share encrypted files securely without exposing passwords.

  • Choose AxCrypt for built-in password management + strong file encryption in one app.

  • Trust AxCrypt when you need proven, reliable, long-standing encryptionโ€”not experimental tools.

  • Choose AxCrypt for excellent customer support that actually responds and solves your issue.

ContractShield.dev's answer:

  • vs. WAFs (Cloudflare, AWS WAF, Reblaze): WAFs can't see business logic. A GET /api/v1/users/456 from an attacker looks identical to a legitimate request. ContractShield understands the contract and blocks it.

  • vs. API security platforms (Salt, Noname, Traceable): These are enterprise-grade, agent-based, and expensive. ContractShield is lightweight middleware you install in 5 minutes with zero infrastructure changes.

  • vs. API testing tools (Akto, Escape.tech, Pynt): These find vulnerabilities before production. ContractShield blocks attacks in production โ€” they're complementary, not competing.

  • Open source core (Apache 2.0): No vendor lock-in, fully auditable code, free for production use. Security certifications include OWASP ASVS Level 1, OpenSSF Scorecard, and SLSA Build Level 1 provenance.

  • Multi-platform from day one: Node.js, Python, and Java โ€” covering ~80% of the API development market.

How would you describe the primary audience of your product?

Axcrypt's answer

  • Personal users protecting documents like IDs, financial papers, medical files, and cloud backups.

  • Professionals & freelancers who share confidential files with clients and need secure workflows.

  • Small businesses & teams needing quick, dependable file-level encryption without enterprise complexity.

  • Non-technical users who want strong protection but prefer a clean, simple interface.

ContractShield.dev's answer:

  • Backend developers and API engineers building REST APIs who want runtime protection without adding infrastructure complexity

  • DevSecOps teams looking to enforce API contracts as security policy in CI/CD and production

  • CTOs and engineering leads at startups and mid-market companies who need API security beyond their WAF but can't justify six-figure enterprise platform contracts

  • Regulated industries (fintech, healthtech, identity verification) where API business logic protection is a compliance requirement

  • Teams already using OpenAPI specifications โ€” ContractShield turns their existing documentation into an active security layer

What's the story behind your product?

ContractShield.dev's answer:

ContractShield was born from years of penetration testing. Running API security assessments for clients, we kept finding the same pattern: organizations had invested in WAFs, API gateways, and network security โ€” yet their APIs were wide open to business logic attacks.

Authentication bypasses. BOLA/IDOR. Parameter tampering. Prototype pollution. Every single one produced clean, valid HTTP requests that sailed through every layer of infrastructure security. The vulnerability wasn't in the payload โ€” it was in the logic.

We realized the gap: infrastructure tools protect the transport layer, but nobody was protecting the contract layer โ€” the actual business rules that define what an API should and shouldn't do.

So we built ContractShield as middleware that reads your OpenAPI specification and enforces it at runtime. Your API contract becomes your security policy. If it's not in the spec, it's blocked. If auth is required, it's enforced. If the schema says no, it means no.

We open-sourced the core under Apache 2.0 because API security shouldn't be a luxury reserved for enterprises with six-figure budgets. We continue to offer Penetration Testing as a Service (PTaaS) alongside the product โ€” because automated protection and expert assessment together provide the strongest security posture.

Which are the primary technologies used for building your product?

ContractShield.dev's answer:

  • TypeScript/Node.js โ€” Core middleware engine and npm packages (@cshield/core, @cshield/pro)
  • Python โ€” FastAPI and Flask middleware adapters (PyPI: contractshield)
  • Java/Spring Boot โ€” Spring Boot starter for enterprise Java APIs (Maven Central)
  • OpenAPI/Swagger โ€” Contract parsing and schema validation engine
  • CEL (Common Expression Language) โ€” Policy engine for custom business rule invariants
  • GitHub Actions โ€” CI/CD, CodeQL security scanning, SLSA provenance, automated publishing
  • Astro โ€” Marketing site and documentation

Who are some of the biggest customers of your product?

ContractShield.dev's answer:

ContractShield PTaaS (our own penetration testing platform runs on ContractShield). Privacy is our moto, contact us for more information.

User comments

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Social recommendations and mentions

Based on our record, Axcrypt seems to be more popular. It has been mentiond 1 time since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.

Axcrypt mentions (1)

  • Client side encryption for OneDrive
    With regard to encryption tools, I use AxCrypt, which is cross-platform, but isn't free in that form. It would though encrypt each file in-place, without need for a dedicated folder or vault and encrypted file will sync with OneDrive, via the standard sync client. It would also allow you to share encrypted files with others, without giving them your encryption password. Source: almost 5 years ago

ContractShield.dev mentions (0)

We have not tracked any mentions of ContractShield.dev yet. Tracking of ContractShield.dev recommendations started around Feb 2026.

What are some alternatives?

When comparing Axcrypt and ContractShield.dev, you can also consider the following products

AES Crypt - AES Crypt is an advanced file encryption utility that integrates with the Windows shell or runs from the Linux command prompt to provide a simple, yet powerful, tool for encrypting files using the Advanced Encryption Standard (AES).

Reblaze - Reblaze is a cloud-native web application and API protection solution

Cryptomator - When it comes to saving your files on a cloud server, it is important to ensure the security of those files. Keeping your delicate files out of the wrong hands can save you a lot of time and hassle. Read more about Cryptomator.

Akto - Akto is an Instant, Open Source API Security product. Discover all your APIs and find vulnerabilities by running 100+built-in tests. Write custom tests and automate in Akto.

Windows BitLocker - This topic provides a high-level overview of BitLocker, including a list of system requirements, practical applications, and deprecated features.

Escape.tech - Escape helps teams secure modern applications - APIs, Single Page Apps, and Microservices by finding business logic flaws at scale with proprietary algorithm and empowering developers to fix them efficiently.