depfixer.com

What It Is

DepFixer is a dependency compatibility analysis and migration tool for JavaScript/TypeScript projects. Developers can paste or upload a package.json, and the system scans dependencies using 2M+ compatibility checks to identify peer dependency conflicts, version mismatches, deprecated packages, and related issues, then provides actionable version-fix recommendations. It is not positioned as a general-purpose package manager, but as a tool to help reduce npm install failures, avoid pitfalls during framework upgrades, and lower the cost of auditing dependencies in legacy projects.

Core Capabilities

In terms of coverage, DepFixer explicitly supports React, Angular, Vue, Next.js, and Node.js projects. It includes dedicated rules for Angular’s RxJS, TypeScript, and Angular CLI compatibility, React 16/17/18, Vue 2/3 migration, and version alignment between Next.js, React, and ESLint. Users can upload package.json through the web interface, and a CLI is also available via npx. JSON output is supported, making it suitable for CI/CD integration. The available materials do not mention a public API or SDK, nor do they state that self-hosting is supported. Its open-source status is also undisclosed. The terms of service emphasize that the platform code and database content belong to DepFixer, so it appears more like a closed-source SaaS product.

Pricing and Payments

DepFixer uses a credit-based pay-as-you-go model with no subscription. New users receive 25 credits upon registration, with no credit card required. Analysis costs are calculated based on project size: 0–24 packages cost 5 credits, 25–49 packages cost 15 credits, 50–99 packages cost 35 credits, and larger projects consume more. Credits do not expire, which is convenient for occasional upgrades and audits. However, the page does not show the actual purchase price of credits, so overall value for money depends on the final pricing. Payments are processed through Stripe, with support for major credit cards, debit cards, and some digital payment methods.

Pros and Cons

The main advantages are its clear problem focus and its end-to-end workflow for frontend dependency conflicts, from detection to fix recommendations. It offers both a web tool and a CLI, keeping the barrier to entry relatively low. The pay-as-you-go model with non-expiring credits also makes it suitable for low-frequency use. The drawbacks are that framework coverage is currently concentrated on mainstream frontend stacks, with limited information about other ecosystems; open-source status, self-hosting, and API capabilities are not clarified; and the official materials state that recommendations are not guaranteed to solve every issue, so developers still need to run local tests and regression validation.

Who It’s For and Access from China

DepFixer is suitable for teams upgrading React, Angular, Vue, or Next.js projects, as well as developers who frequently deal with npm peer dependency conflicts or inherit legacy projects. For users in China, the collected information does not provide details on access speed, ICP filing, mainland China nodes, or local payment options. Stripe payments may present credit card compatibility issues in China, but that alone does not indicate the service is restricted. Its current accessibility from China should be considered unknown. Alternatives include npm audit, the built-in resolution capabilities of pnpm/yarn, Renovate, Dependabot, Snyk, and Socket.