toolgrep / APIs & backend / Corsfix
Alternatives to Corsfix
Corsfix: CORS proxy for solving cross-origin errors. 8 products similar to Corsfix, compared on pricing, free tier, API, MCP server, SDK and open source. 8 of 8 have a free tier, 6 of 8 have an API, 4 of 8 offer an MCP server, 1 of 8 is open source.
- CORS Tester
Check whether an API's CORS response headers permit a frontend to read a response, with preflight and HTTP status reported separately.
- PromoProxy
Cloud-based proxy service unifying HTTPS inspection, antivirus, web filtering, log auditing, and user management.
- LocalXpose
Secure tunneling & localhost tunnel software
- Mockfly
Hosted mock API generator for frontend teams
- Mocklets
HTTP-based mock API simulator for parallel development and testing
- Convex
The reactive backend platform with database, functions, workflow, sync, search, and file storage in TypeScript
- Courier
Customer messaging platform for humans and AI agents
- Formgong
Form backend for HTML, React and AI-built sites
Side by side
| Product | Pricing | Free tier | API | MCP server | SDK | Open source |
|---|---|---|---|---|---|---|
| Corsfix | Freemium · from $0 | yes | yes | no | yes | no |
| CORS Tester | Free | yes | no | no | no | — |
| PromoProxy | Freemium · from ¥0/month (Free plan) | yes | no | no | no | no |
| LocalXpose | Freemium · from $8 | yes | yes | — | — | — |
| Mockfly | Freemium | yes | yes | yes | no | no |
| Mocklets | Freemium · from $5 | yes | yes | no | — | no |
| Convex | Freemium · from $0 | yes | yes | yes | yes | yes |
| Courier | Freemium | yes | yes | yes | yes | no |
| Formgong | Freemium · from $0 | yes | yes | yes | yes | no |
Facts come from each product's own website, or from its verified owner when they have edited the listing. Each product page shows when it was last verified and how it was extracted. Similarity comes from the products' descriptions.
API
curl https://toolgrep.com/api/products/corsfix/alternatives