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Dev tools · alternatives · 2026

24 alternatives to FINT 4.0

Long awaited release that contains gRPC, REST & WCF support

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. FINT 4.0 launched in 2021; newer entries below may have overtaken it.

  1. 1
    FINT▲3

    gRPC Service Functional & Load Testing in a single app!

    2021 · its alternatives →

  2. 2
    FintX▲8

    Native, cross-platform gRPC test tool

    2024 · its alternatives →

  3. 3

    Cross platform grpc testing (Windows, MacOS, Linux)

    2025 · fintx.dev · its alternatives →

  4. 4
    Fin▲558

    A new kind of assistant that runs in the cloud

    2017 · fin.com · its alternatives →

  5. 5
    Fern▲260

    We built the world’s first generated, idiomatic gRPC and REST SDK. If you have public gRPC and REST endpoints, Fern is the SDK provider for you.

    2025 · buildwithfern.com · its alternatives →

  6. 6

    Leading Open Source API Development Platform for HTTP, REST, GraphQL, gRPC, SOAP, and WebSockets

    2017 · insomnia.rest · its alternatives →

  7. 7

    Monitoring for websites, APIs, and cron jobs

    2024 · webgazer.io · its alternatives →

  8. 8

    Making Web Testing Easier Automated testing on 3000+ desktop & mobile browser at Studio version! Making Web Testing Easier Automated testing on 3000+ desktop & mobile browser at Studio version! Explore product trial and special offers Download TRIAL version to start your full 1 day evaluation now! M

    2017 · browseemall.com · its alternatives →

  9. 9

    Friendly and fast tool for sending HTTP requests. Contribute to ducaale/xh development by creating an account on GitHub.

    2021 · github.com · its alternatives →

  10. 10
    Flipt v2▲178

    Hey all, I'm the founder of Flipt, an open-source (https://github.com/flipt-io/flipt) feature flag tool that I (and others) have been working on for the past few years. About a year or two ago we added support for serving flag state from various non-relational declarative stores like Git, OCI, Object Store, etc. Many of our users came to love the git-backed storage, as it allows them to keep their feature flags close to their code in there organization's repos. But they had one (rather large) ask, and that was the ability to use the UI to manage flag state changes and…

    Oct 2025 · flipt.io · its alternatives →

  11. 11
    SST▲109

    Work on your serverless apps live

    2021 · github.com · its alternatives →

  12. 12

    Our API Management platform is fast, scalable, modern. Including an open source API Gateway, Analytics, Dev Portal and Dashboard

    2014 · tyk.io · its alternatives →

  13. 13

    For the past few months we’ve been building a simple jest/typescript-based high-level language for writing and running integration tests. We're open-sourcing it now and are excited to share it with you: https://github.com/traceloop/jest-opentelemetry Why we built this: - There are many solid frameworks for FE / browser testing, but none with high-level constructs for testing BE flows - We were missing a way to validate side effects for complex backend systems, especially across async queueing systems Our beta version lets you send an API call to a system and…

    2023 · github.com · its alternatives →

  14. 14

    Ensure your web-apps work seamlessly across all browsers.

    2018 · testmuai.com · its alternatives →

  15. 15

    Asynchronous C networking library with HTTP server, WebSockets, reverse proxy, HTTP/2 gRPC client, TLS and event loop. - Softmotions/iwnet

    2022 · github.com · its alternatives →

  16. 16

    gRPC over WebRTC. Contribute to jsmouret/grpc-over-webrtc development by creating an account on GitHub.

    2020 · github.com · its alternatives →

  17. 17
    OneFin▲120

    One stop fintech software for banks & NBFCs

    2025 · demo.onefin.in · its alternatives →

  18. 18
    Gretl▲88

    Visual control panel for localhosts

    May 2026 · gretl.dev · its alternatives →

  19. 19
    Routebase▲106

    Design, mock, test, and document APIs from one living spec. Full test runner built in: suites, scenarios, ten auth schemes, CLI in CI. No OpenAPI needed.

    Jul 2026 · routebase.dev · its alternatives →

  20. 20

    Build your fintech product using our plug & play APIs

    2021 · its alternatives →

  21. 21

    Sample cloud-first application forked from GoogleCloudPlatform/microservices-demo with added support for REST and Thrift APIs. - letsramp/sample-microservices

    2023 · github.com · its alternatives →

  22. 22

    The most advanced platform for building fintech applications

    2020 · its alternatives →

  23. 23

    Transform cloud finance data into actionable insights!

    2021 · aquilaclouds.com · its alternatives →

  24. 24IV

    Hi HN,<p>In my spare time (evenings and weekends) I've built 3 products which have been relatively successful even with little advertising (only google ads budgeted at $30 per day). The latest one is WcfStorm.Rest; which is a REST service test client. I built it because I found that the current tools did not have the features I wanted such as, intellisense when working with HTTP headers, syntax highlighting for JSON messages, etc.<p>I'm continually trying to improve these products and would very much love get your feedback. Every suggestion is welcome!<p>(My apologies…

    2012 · wcfstorm.com · its alternatives →

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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →