Listed together in guide “AI coding tools”
Code quality and security platform (SonarQube) that analyzes source code, including AI-generated code, with self-hosted, cloud, and IDE editions.
Freemium
Use cases
- Enforcing code quality and security gates in CI pipelines
- Reviewing and remediating AI-generated code before merge
- Tracking technical debt and code complexity across a codebase
Pricing: SonarQube has a no-expiry free tier for private projects with a lines-of-code cap and is free for public open-source projects. Paid Team and Enterprise plans are priced per instance per year based on private-project lines of code, with a 14-day trial; SonarQube for IDE is free.
Pricing ↗ · Documentation ↗ · Sources
This record was last reviewed on 2026-09-10.
Listed together in guide “Multi-file edits in an existing repository”
AI code-review assistant that reviews pull requests and suggests changes.
Freemium
Use cases
- Speeding up code review on pull requests
- Catching issues before human review
- Consistent review coverage across a team
Pricing: Reviews are free for public repositories, including open-source projects; paid plans add features and organization controls.
Pricing ↗ · Documentation ↗ · Sources
This record was last reviewed on 2026-09-10.
Listed together in guide “Multi-file edits in an existing repository”
Code integrity platform (formerly CodiumAI) for AI-generated tests, reviews, and code suggestions.
Freemium
Use cases
- Raising test coverage automatically
- Speeding up PR review with AI summaries and findings
- Enforcing code quality standards in CI
Pricing: A free Developer tier covers individual use; Teams and Enterprise plans are per-seat with advanced integrations and support.
Pricing ↗ · Documentation ↗ · Sources
This record was last reviewed on 2026-10-10.
Listed together in guide “Choosing a VS Code AI extension”
Enterprise AI coding assistant from Sourcegraph with whole-codebase context; free and Pro tiers ended in 2025, succeeded for individuals by Amp.
Paid
Use cases
- Understanding and navigating large codebases
- Codebase-aware chat and refactoring
- Enterprise coding assistance with code search
Pricing: Cody Free and Pro were discontinued on July 23, 2025; Cody is now sold as part of Sourcegraph's enterprise offerings, with Amp serving individual developers.
Pricing ↗ · Documentation ↗ · Sources
This record was last reviewed on 2026-09-04.
Listed together in guide “AI coding tools”
Software-engineering intelligence platform that scores a codebase with Code Health and uses that metric to gate, review, and refactor AI-generated code.
Freemium
Use cases
- Safeguarding AI-generated code before it is merged
- Prioritising technical debt by business impact instead of warning count
- Running code-quality analysis on-premise for teams that cannot use SaaS
Pricing: The pricing page lists a Standard plan at €18 with yearly billing (advertised as a 10% saving), delivered on-premise (self-managed) or cloud-based. Pro, enterprise terms, and the ACE and MCP Server add-ons are quote-based, and a free Community Edition covers open-source projects.
Pricing ↗ · Documentation ↗ · Sources
This record was last reviewed on 2026-10-12.
Listed together in guide “AI coding tools”
Autonomous Java unit-test generation: Diffblue Cover writes, maintains, and repairs tests with a deterministic reinforcement-learning engine that runs in the customer's own environment.
Freemium
Use cases
- Raising unit-test coverage on a legacy Java codebase before modernisation
- Adding regression tests in CI without hand-writing each case
- Keeping source code off external model providers for regulated or air-gapped projects
Pricing: Pricing is outcome-based rather than per seat: the published starter package is $1,500 for 5,000 net new lines of coverage, an effective $0.30 per line, with enterprise packages quoted. Cover Community Edition is a free edition for open-source and commercial use.
Pricing ↗ · Sources
This record was last reviewed on 2026-10-12.
Related: shares the task Writing new code, Editing an existing codebase
Coding-agent platform from For Good AI, combining Zenflow Code desktop workflows with IDE agents and model-provider choices.
Freemium
Use cases
- Plan and implement a change across an existing repository
- Run a structured bug-fix or refactoring workflow with review
- Coordinate coding tasks with model choices and team usage controls
Pricing: The Free plan is BYOK-only after the trial: external model-provider costs remain separate. The documented Pro price is USD 45 per user per month with monthly billing, or an equivalent USD 40 per month when billed annually. Paid plans include monthly credits; top-ups and usage conditions still apply.
Pricing ↗ · Documentation ↗ · Sources
This record was last reviewed on 2026-11-02.
Related: shares the task Writing new code, Editing an existing codebase
Open-source command-line tool for AI pair programming that edits code in your local git repository.
Open (open weights/source) Apache-2.0
Use cases
- Making multi-file code changes from natural-language requests
- Refactoring or extending an existing codebase from the terminal
- Pair programming with local or hosted models without leaving the CLI
Pricing: Aider is free and open source (Apache-2.0); the only cost is API usage for the LLM you connect, or nothing when using a local model.
Documentation ↗ · Sources
This record was last reviewed on 2026-10-10.