Dev tools · alternatives · 2026
24 alternatives to JestSmith
Generate Jest tests for TS/JS code using AI & LLMs
Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.
- 1BF
2017 · github.com · its alternatives →
- 2
- 3
Generate custom data & API to build apps in less than 30s
2021 · its alternatives →
- 4
- 5WW
I spent a few hours last weekend testing whether AI can replace code by executing directly. Built a contact manager where every HTTP request goes to an LLM with three tools: database (SQLite), webResponse (HTML/JSON/JS), and updateMemory (feedback). No routes, no controllers, no business logic. The AI designs schemas on first request, generates UIs from paths alone, and evolves based on natural language feedback. It works—forms submit, data persists, APIs return JSON—but it's catastrophically slow (30-60s per request), absurdly expensive ($0.05/request), and has zero UI…
Nov 2025 · github.com · its alternatives →
- 6
VS Code extension for UT in JavaScript, TypeScript & Python
2021 · its alternatives →
- 7
- 8
Types generator will auto generate TS Interfaces from JSON
2022 · its alternatives →
- 9
TestGenie AI▲13Write and run your JS/TS tests in seconds with AI
2025 · github.com · its alternatives →
- 10
Your playground for writing custom API security tests
2023 · its alternatives →
- 11AO
Hi Hacker News! My name is Sagar, I’m working on a startup called Speakeasy - we’re making all APIs self-service. The platform is currently in beta, but we’re independently launching this tool which you can use to generate language-idiomatic, statically-typed TS SDKs from any public OpenAPI schemas. We hope to continue iterating on this to give devs a way to easily generate high fidelity client SDKs for all the major languages. Inspiration for this product is from past experiences struggling with OpenAPI. I was originally optimistic about using the OpenAPI tools to build out our offering,…
2022 · easysdk.xyz · its alternatives →
- 12
- 13EA
2023 · github.com · its alternatives →
- 14OS
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 →
- 15
Run TypeScript snippets directly in Chrome DevTools
2024 · chromewebstore.google.com · its alternatives →
- 16
- 17AO
2023 · github.com · its alternatives →
- 18RT
2018 · github.com · its alternatives →
- 19
- 20
FixtureKit▲31Turn TypeScript interfaces into realistic mock data
Jun 2026 · fixture-kit.vercel.app · its alternatives →
- 21IB
Hi! My name is Herve Kom, a computer science student that is interested in learning new things everyday! As one of my graduation project, I have developed a Claude Code -like Coding CLI, but with enhancement for API Testing: - Auto-generate & run tests (unit, e2e, Playwright, CI/CD, etc.) - Say bye-bye to hallucinations with built-in MCP Server to let LLM directly read from API Docs - Adding Agent.md support for better context persistence across your whole codebase - Automatic bug & security scans (logic is kind of basic but works great!) - Vibes, I want it to feel less "enterprise" but…
2025 · github.com · its alternatives →
- 22TE
A free, in-browser Jupyter-style notebook for TypeScript. It supports npm installs, network requests, and more—no signup or setup required. Why I Built It I wanted a simple way to test npm packages, experiment with TypeScript, and work on ideas like prompt engineering without heavy setup or local tools. Features - npm Integration: Install and use packages instantly. - Network Requests: Test APIs right in the notebook. - TypeScript Playground: Experiment, debug, and share code. It’s ideal for developers, educators, and anyone wanting a TypeScript scratch pad. Give it a try at…
2025 · typescriptnotebook.com · its alternatives →
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- 24FJ
2023 · github.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 →