Dev tools · alternatives · 2026
24 alternatives to Guide
Let your API speak for itself, OpenAPI to beautiful docs.
Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.
- 1
Swagger Editor▲207Beautiful API references from Swagger, OpenAPI spec
2023 · sandbox.scalar.com · its alternatives →
- 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
Docs by Hashnode▲700The gold standard for your API references and product guides
2024 · hashnode.com · its alternatives →
- 4
Generate, edit, lint & test your API workflow in one place
2025 · app.getelva.ai · its alternatives →
- 5
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 →
- 6
Generate and share OpenAPI specs with AI
2025 · api.dev · its alternatives →
- 7RI
ReadMe helps you create beautiful, interactive API documentation that developers love.
2014 · readme.io · its alternatives →
- 8
Stedi Guides▲89Shareable implementation guides for modern EDI integrations
2022 · stedi.com · its alternatives →
- 9DG
2012 · beautifuldocs.com · its alternatives →
- 10
Hey, I'm Martyn and I recently joined Zuplo. OpenAPI is a huge part of what we do, but getting a document up to scratch out of the gate, especially if you're not super well versed in the actual specification and what you should use and when. So we built a suite of tools to help with this called Rate My OpenAPI. It will score your OpenAPI document out of 100, as well as giving you individual scores in 4 key areas; completeness, SDK generation, security and documentation. Along with the score, you also get details of what the issues, or errors are, as well as guidance on what they actually…
2024 · github.com · its alternatives →
- 11
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 →
- 12
- 13
A generator for OpenAPI 3. Contribute to egorsmkv/openapi3-generator development by creating an account on GitHub.
2020 · github.com · its alternatives →
- 14
API design studio for product managers
2023 · conektto.io · its alternatives →
- 15
OpenAPI linting, diffing and testing. Optic helps prevent breaking changes, publish accurate documentation and improve the design of your APIs. - optic/docs/generate-openapi.md at main · opticdev/optic
2023 · github.com · its alternatives →
- 16TA
An OpenAPI alternative to describe REST APIs for type-safe code generation.
2023 · typeapi.org · its alternatives →
- 17
Documind is an open-source tool that turns documents into structured data using AI. What it does: - Extracts specific data from PDFs based on your custom schema - Returns clean, structured JSON that's ready to use - Works with just a PDF link + your schema definition Just run npm install documind to get started.
2024 · github.com · its alternatives →
- 18
Fill out and generate PDFs with a simple API request. Design templates in our drag-and-drop editor, POST your JSON data, and download a finished PDF in seconds.
2017 · formapi.io · its alternatives →
- 19
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 →
- 20
Developerhub.io▲149Create beautiful powerful documentation, hassle-free.
2018 · developerhub.io · its alternatives →
- 21
Octri.dev▲136Octri 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 →
- 22
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 →
- 23
Free online tool to test APIs and autogenerate documentation
2018 · swagger.io · its alternatives →
- 24
With Stoplight, you can create OpenAPI descriptions, documentation, and mock servers much faster than other API tools — with no specialized knowledge required — all in one centralized platform.
2016 · stoplight.io · 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 →