Dev tools · alternatives · 2026
24 alternatives to Yaak
The API client for modern developers
Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Yaak launched in 2024; newer entries below may have overtaken it.
- 1
Hi HN! I'm Greg and I've been working on Yaak for just over a year. I usually describe it as a Postman alternative since most developers are familiar with that, but it's targeted more toward users that just want an API client (no mocking, testing, spec design, etc). Having also created Insomnia for a similar purpose, I never thought I'd build another API client again. But, after selling Insomnia in 2019 and watching it expand into the broader feature set of Postman, I was left wanting a simpler tool again. Yaak was my answer to that. It's hard to describe how it's better than the 100 other…
2025 · yaak.app · its alternatives →
- 2
Fern▲260We 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 →
- 3
Leading Open Source API Development Platform for HTTP, REST, GraphQL, gRPC, SOAP, and WebSockets
2017 · insomnia.rest · its alternatives →
- 4
2023 · openapistack.co · its alternatives →
- 5
Bruno ▲457Bruno is the Git-native API client for REST, GraphQL, gRPC and Websocket. A local and open-source solution to Postman. Fast, developer-first, and no cloud syncing.
2025 · usebruno.com · its alternatives →
- 6
Generate, edit, lint & test your API workflow in one place
2025 · app.getelva.ai · its alternatives →
- 7
Yaade is an open-source, self-hosted, collaborative API development environment. - EsperoTech/yaade
2022 · github.com · its alternatives →
- 8
Leading Open Source API Development Platform for HTTP, REST, GraphQL, gRPC, SOAP, and WebSockets
2020 · insomnia.rest · its alternatives →
- 9
Our API Management platform is fast, scalable, modern. Including an open source API Gateway, Analytics, Dev Portal and Dashboard
2014 · tyk.io · its alternatives →
- 10
Generate and share OpenAPI specs with AI
2025 · api.dev · its alternatives →
- 11
Scalable open source pub/sub SDK with support for RPC, JWT authentication and Kubernetes — optimized for async/await
2016 · socketcluster.io · its alternatives →
- 12
Terminal API client for HTTP, GraphQL and gRPC. Plain .http files you can diff and version, with workflows, mocks, profiling, tracing, OpenAPI import, SSH tunnels, Kubernetes port-forwards, WebSocket, SSE and a CLI runner. - unkn0wn-root/resterm
2025 · github.com · its alternatives →
- 13
Hypi▲113A low-code backend as a service to build GraphQL & REST APIs
2020 · hypi.ai · its alternatives →
- 14
2019 · github.com · its alternatives →
- 15
I shared a previous version of yapi a few months ago in the comments section of a post talking about the insanity of Postman being 'down'. yapi has developed into a more mature project since then! https://github.com/jamierpond/yapi Still very early, but it makes me much more productive vs Postman, Bruno, Insomnia, etc. If youre a nvim/tmux culture human, you might like this!
Dec 2025 · yapi.run · its alternatives →
- 16
🔥 GUI client for gRPC/gRPC-Web. Contribute to getezy/ezy development by creating an account on GitHub.
2022 · github.com · its alternatives →
- 17
Interact with all your data in WordPress using GraphQL - Release GraphQL API v0.9! 🎉🥳🚀🔥🙏 · GatoGraphQL/GatoGraphQL
2023 · github.com · its alternatives →
- 18
Graphweaver is an open-source GraphQL API Server that can connect many data sources to create a single API. Create a headless CMS, API Gateway, BaaS or use it as a BFF.
2023 · github.com · its alternatives →
- 19OS
tl;dr we released openapi.security, an online tool that performs a dozen of security tests on any given openapi/swagger-based API, with no signup or email required. You can try it here: https://openapi.security My team at Escape (YC W23) is mainly focused on securing GraphQL APIs. For this, we developed a new approach called Feedback driven API Exploration. Basically, we infer the right security tests cases to run using the specification and a carefully crafted in house graph traversal algorithm. (It's a bit long to describe here but we published a more in depth explanation of…
2023 · openapi.security · its alternatives →
- 20
A cross-platform HTTP client desktop application for testing HTTP and REST APIs, WebSocket, GraphQL (including subscriptions) and gRPC endpoints. - sunny-chung/hello-http
2023 · github.com · its alternatives →
- 21WB
YC Startup Directory GraphQL API
2022 · yc-graphql.vercel.app · its alternatives →
- 22TC
2015 · cloud.tyk.io · its alternatives →
- 23
Hi Hacker News! Patrick and Elias here. We built an SDK / Documentation generator for REST APIs. The link included shows the shiny output of our system: the docs! We generated 5 SDKs and docs from the Hacker News OpenAPI we found on GitHub. If you write code in Python, Typescript, Go, Ruby, or Rust, we’d love for you to try an SDK out! If you want to generate SDKs for your own API try our tool here: https://github.com/Sideko-Inc/sideko We are both software engineers, and we built this tool because we were spending too much time writing API integrations, supporting…
2023 · hacker-news.sideko.dev · its alternatives →
- 24
RESTFul API wilayah Indonesia dengan GraphQL
2020 · wilayah-indonesia.herokuapp.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 →