Software Alternatives & Startups

Code Diagram VS ApyGuard

Compare Code Diagram VS ApyGuard and see what are their differences

Code Diagram

Visual note taker for VSCode

No screenshot yet
Rating
0 reviews
ApyGuard

Discover your API surface and test authorization, OWASP API Top 10, and business-logic risks before production. Start free with no credit card.

Rating
0 reviews
Pricing
Paid Free trial $129 / Monthly
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Base details

Website, pricing, platforms and company facts side by side.

Code Diagram
ApyGuard
Website codediagram.io apyguard.com
Pricing —
Paid Free trial $129 / Monthly Official pricing
Platforms —
SaaS
Company — Startup from Turkey · 1 - 9 employees
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About Code Diagram and ApyGuard

In their own words, as submitted to SaaSHub.

Code Diagram
ApyGuard

No description of Code Diagram yet.

ApyGuard is a developer-first API security testing platform that finds vulnerabilities and authorization flaws before they reach production. Most teams don't have an accurate picture of the APIs their applications actually expose. OpenAPI files go stale, and AI coding assistants (Copilot, Cursor,...

Read more about ApyGuard

Features and specs

What each product offers, as listed by its team.

Code Diagram 5 features
ApyGuard 17 features
  • Visual Code Understanding
    Code Diagram helps developers visualize their codebase through auto-generated diagrams, making it easier to understand complex code structures, relationships, and architecture at a glance.
  • IDE Integration
    The tool integrates directly with popular development environments like VS Code, allowing developers to create and view diagrams without leaving their coding workflow.
  • Automatic Diagram Generation
    Code Diagram can automatically generate diagrams from existing code, saving significant time compared to manually creating and maintaining architecture documentation.
  • Improved Documentation
    By providing visual representations of code structure, it helps teams maintain up-to-date documentation that is easier to share and understand, improving collaboration among team members.
  • Support for Multiple Diagram Types
    The tool supports various diagram types such as class diagrams, sequence diagrams, and dependency graphs, giving developers flexibility in how they visualize different aspects of their codebase.

Possible disadvantages

  • Limited Language Support
    Code Diagram may not support all programming languages equally, potentially leaving developers working in less popular or niche languages without full functionality.
  • Learning Curve
    Despite being visual, users may still need time to learn how to effectively use the tool, configure diagram settings, and interpret the generated visualizations properly.
  • Performance with Large Codebases
    Generating diagrams for very large or complex codebases can be slow or produce cluttered, hard-to-read visualizations that require significant manual adjustment.
  • Limited Free Tier
    The tool may have restrictions on its free plan, requiring a paid subscription to access advanced features, which can be a barrier for individual developers or small teams on tight budgets.
  • Diagram Customization Constraints
    Auto-generated diagrams may not always match the exact layout or style preferences of users, and customization options may be limited compared to dedicated diagramming tools like draw.io or Lucidchart.
  • API Security
    Developer-first API security: discovery, documentation, testing, and vulnerability management in one platform.
  • API Security Assessment
    Maps your full API attack surface and delivers a prioritized, evidence-backed risk report.
  • API Security Testing
    Simulates real attacks with payloads tailored to each API's schema and role model to catch broken auth, injection, and authorization flaws before production.
  • API Discovery
    Finds every endpoint your backend actually exposes by analyzing the codebase directly, before deployment.
  • Sensitive Data Detection
    Identifies endpoints exposing sensitive data that needs protection or masking.
  • Behavioral Analysis
    Learns normal API behavior and flags anomalies and business-logic issues beyond schema validation.
  • OpenAPI Documentation
    Generates and maintains OpenAPI specifications from discovered endpoints, so docs never go stale.
  • Business Logic Testing
    Detects logic abuse schema validation can't catch, like users reaching other users' data or skipping workflow steps.
  • OWASP API Top 10 Coverage
    Automated test coverage for the full OWASP API Security Top 10.
  • CI/CD Integration
    Blocks releases on critical findings via GitHub Actions, GitLab CI, CircleCI, and Azure DevOps.
  • Scheduled Scans
    Runs security tests on demand or on a recurring schedule for continuous coverage.
  • Vulnerability Management
    Dashboards for risk posture, trends, and endpoint-level insight, with Jira and Slack routing.
  • Compliance Reporting
    Maps findings to OWASP, GDPR, and PCI DSS requirements for audits and security questionnaires.
  • SaaS
    Cloud-hosted with nothing to deploy — no agents, no traffic mirroring; sign up and run your first scan the same day.
  • On-Premise Deployment
    Self-hosted option for organizations with data residency or isolation requirements.
  • VSCode Extension
    APIScout: free, local-first endpoint discovery and OpenAPI generation in the editor — no code leaves your machine. Also on Open VSX for Cursor and Windsurf.
  • Chrome Extension
    Captures API calls from live browsing sessions to discover endpoints and feed your API inventory.

Analysis

An editorial look at what each product does well and who it suits.

Code Diagram
ApyGuard

Overall verdict

  • Code Diagram (codediagram.io) is a solid choice for developers and teams who want to quickly visualize codebases as diagrams without manually creating architecture documentation, though its usefulness depends on how well it supports your specific language and project complexity.

Why this product is good

  • Automatically generates visual diagrams from source code, saving time compared to manual diagramming tools
  • Helps new team members or contributors understand project structure faster
  • Useful for documentation purposes, keeping visual references in sync with actual code
  • Can reveal architectural issues, tangled dependencies, or overly complex modules
  • Often integrates into existing workflows, making it easy to adopt without heavy setup

Recommended for

  • Development teams onboarding new engineers who need to understand codebase structure quickly
  • Solo developers or open source maintainers wanting to provide visual documentation
  • Technical leads reviewing architecture for refactoring opportunities
  • Teams maintaining legacy codebases who need up-to-date structural visibility
  • Educators or students trying to understand how software systems are organized

No analysis of ApyGuard yet.

Videos

Walkthroughs and reviews on video.

Code Diagram 0 videos + Add
ApyGuard 2 videos + Add

No Code Diagram videos yet. You could help us improve this page by suggesting one.

ApyGuard - API Discovery Chrome Extension

More videos

  • - Detect API Behavior Drift Before It Becomes a Risk | ApyGuard Behavior Profiling

Category popularity

How often each product is chosen within a category, 0–100% relative to the other.

Score bands 0–20 21–40 41–50 51–60 61–100
Code Diagram
ApyGuard
100% 100%
0% 0%
0% 0%
100% 100%
100% 100%
0% 0%
0% 0%
100% 100%

Questions & Answers

As answered by people managing Code Diagram and ApyGuard.

What makes your product unique?

ApyGuard's answer:

ApyGuard starts from source code, not traffic. Most API security platforms watch production traffic to discover APIs — which means they can only see endpoints that are already deployed and receiving requests. ApyGuard discovers endpoints directly from the codebase, generates OpenAPI documentation from what it finds, and tests for OWASP API Top 10 issues — especially authorization flaws like BOLA and BFLA — before the code ships. It also comes with APIScout, a free VS Code extension (also on Open VSX for Cursor and Windsurf) that runs endpoint discovery entirely locally, so no code ever leaves the developer's machine. And unlike most of the category, pricing is public and self-serve, starting at $129/month.

Why should a person choose your product over its competitors?

ApyGuard's answer:

It depends on your situation, honestly. If you're an enterprise with a security operations team and a six-figure budget, traffic-based platforms are mature options. ApyGuard is built for the teams those platforms don't serve: startups and SMBs that ship APIs every week without a dedicated AppSec department. Compared to spec-first tools, ApyGuard doesn't require you to already have an OpenAPI file — it generates one from your code. Compared to traffic-based tools, it tests pre-production instead of after exposure. Compared to per-endpoint enterprise pricing, it starts at $129/month with a seven-day trial, no credit card and no sales call. You can find out what your API actually exposes the same day you sign up.

How would you describe the primary audience of your product?

ApyGuard's answer:

Backend developers, DevSecOps engineers, and engineering leaders at startups and small-to-mid-sized technology companies — typically SaaS, fintech, e-commerce, and healthcare teams. A fast-growing part of our audience is teams building with AI assistants like Copilot, Cursor, and Claude Code, who need to know exactly which endpoints their AI-assisted codebase actually exposes.

What's the story behind your product?

ApyGuard's answer:

The recurring problem: teams almost never had an accurate picture of the APIs their applications exposed. OpenAPI files went stale, undocumented endpoints shipped every sprint, and the tools that could help were priced and designed for large enterprises. AI coding assistants made the gap worse - code ships faster than anyone documents or reviews it. ApyGuard was built to close that gap from the source code side: discover what's really there, document it automatically, and test it before production - at a price a startup can actually pay.

Which are the primary technologies used for building your product?

ApyGuard's answer:

Python (static analysis and scanning engine) TypeScript (web application and VS Code extension)

User comments

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