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Dev tools · alternatives · 2026

24 alternatives to OpenAPI Editor

Easily edit OpenAPI and Swagger files in JetBrains products

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. OpenAPI Editor launched in 2020; newer entries below may have overtaken it.

  1. 1

    Beautiful API references from Swagger, OpenAPI spec

    2023 · sandbox.scalar.com · its alternatives →

  2. 2

    Effortlessly discover API behaviour with a Chrome extension that automatically generates OpenAPI specifications in real time for any app or website.

    2023 · github.com · its alternatives →

  3. 3

    A generator for OpenAPI 3. Contribute to egorsmkv/openapi3-generator development by creating an account on GitHub.

    2020 · github.com · its alternatives →

  4. 4

    Automagically reverse-engineer REST APIs via capturing traffic - alufers/mitmproxy2swagger

    2022 · github.com · its alternatives →

  5. 5

    Free online tool to test APIs and autogenerate documentation

    2018 · swagger.io · its alternatives →

  6. 6

    Generate, edit, lint & test your API workflow in one place

    2025 · app.getelva.ai · its alternatives →

  7. 7

    The gold standard for your API references and product guides

    2024 · hashnode.com · its alternatives →

  8. 8
    Platapi▲108

    Convert OpenAPI docs to working dynamic mock endpoints

    2024 · its alternatives →

  9. 9

    Proxy remote LLM API as Ollama and LM Studio, for using them in JetBrains AI Assistant - Stream29/ProxyAsLocalModel

    2025 · github.com · its alternatives →

  10. 10

    Hey HN, we’re building an open specification that lets agents discover and invoke APIs with natural language, built on the OpenAPI standard. agents.json clearly defines the contract between LLMs and API as a standard that's open, observable, and replicable. Here’s a walkthrough of how it works: https://youtu.be/kby2Wdt2Dtk?si=59xGCDy48Zzwr7ND. There’s 2 parts to this: 1. An agents.json file describes how to link API calls together into outcome-based tools for LLMs. This file sits alongside an OpenAPI file. 2. The agents.json SDK loads agents.json files as tools for an LLM that…

    2025 · github.com · its alternatives →

  11. 11
    Octri.dev▲136

    Octri provides API teams a single platform to publish docs, generate SDKs, add MCP access, and monitor APIs in production. API Studio includes editable API docs with Ask the Docs, agent-readable docs, custom guides, code examples, and an API playground. SDK Studio generates clien

    Sep 2026 · octri.dev · its alternatives →

  12. 12

    API design studio for product managers

    2023 · conektto.io · its alternatives →

  13. 13

    Hi HN I built YAML Studio, a visual editor that helps you design complex OpenAPI specs without hand-writing YAML or dealing with $ref headaches. It's a drag-and-drop, form-based tool that generates clean OpenAPI 3.0/3.1 YAML — useful for devs, PMs, and tech writers who want to collaborate on API design without needing deep spec knowledge. Why I built this: I’ve spent countless hours manually writing and debugging OpenAPI files — breaking things with a bad indent or misused $ref. Existing tools like Swagger Editor are great, but still very code-centric. I wanted something more intuitive,…

    2025 · yamlstudio.com · its alternatives →

  14. 14

    Convert Postman Collection to Swagger/Open API Spec

    2023 · its alternatives →

  15. 15

    We are working on an open-source .docx editor library for apps that need to edit Word documents in the browser. We just shipped 1.0. A lot of existing approaches convert .docx into HTML and lose document semantics along the way. Our editor parses OOXML directly and uses its own rendering+layout engine to produce paged documents with html/css. Edits round-trip back to .docx, so you’re always editing the document, not its representation. The core rendering engine is framework agnostic, with React and Vue ui adapters on top. It’s Apache 2.0. Happy to answer questions.

    May 2026 · github.com · its alternatives →

  16. 16

    📘 OpenAPI/Swagger-generated API Reference Documentation - Redocly/redoc

    2016 · github.com · its alternatives →

  17. 17

    Link your app design to API calls

    2022 · its alternatives →

  18. 18

    FastOpenAPI is a library for generating and integrating OpenAPI schemas using Pydantic v2 and various frameworks (AioHttp, Django, Falcon, Flask, Quart, Sanic, Starlette, Tornado). - mr-fatalyst/fastopenapi

    2025 · github.com · its alternatives →

  19. 19

    Port OpenAPI Specs to Postman Collections, inject test suite and run via Newman 👨🏽‍🚀 - apideck-libraries/portman

    2021 · github.com · its alternatives →

  20. 20

    Your playground for writing custom API security tests

    2023 · akto.io · its alternatives →

  21. 21
  22. 22

    We built an open-source tool that scans your codebase and generates OpenAPI docs in minutes. Right now it supports Rails, Go, Python, and NodeJS frameworks, and we will keep adding more. It picks up routes, params, request bodies, and models directly from the code and outputs a clean OpenAPI spec you can drop into your workflow.

    Nov 2025 · github.com · its alternatives →

  23. 23TA

    An OpenAPI alternative to describe REST APIs for type-safe code generation.

    2023 · typeapi.org · its alternatives →

  24. 24
    Guide▲9

    Let your API speak for itself, OpenAPI to beautiful docs.

    2025 · rafaelneves.me · 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 →