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curated by builders.

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Filtered by“testing”clear

Matches for "testing"

10 repos

Open-source product analytics. ~21k stars. Self-hostable or managed. Combines analytics, session replay, feature flags, A/B testing in one platform. Generous free tier — most early-stage products neve…

Analytics

You want product analytics + session replay + feature flags in one tool without paying GA-replacement prices.

You just want simple page-view counts — Plausible is lighter.

PostHog/posthogView

vitest-dev

vitest

Vite-native unit test runner. ~13k stars. Faster than Jest, compatible API. Default for new Vite-based projects in 2026.

Testing

You are starting a new project on Vite or modernizing from Jest.

You are deep in a Jest codebase and migration cost is high — Jest still works.

vitest-dev/vitestView

microsoft

playwright

End-to-end browser testing. ~65k stars. Beat Cypress on speed, parallelism, and multi-browser support. Default for E2E testing in 2026.

Testing

You are writing E2E tests for a web app.

You only need unit tests — use Vitest.

microsoft/playwrightView

storybookjs

storybook

Component development environment. ~84k stars. Develop, test, and document components in isolation. Mostly used by larger teams with design systems.

TestingUI Components

You are maintaining a design system or have multiple developers building components in parallel.

You are a solo developer — overkill for most product work.

storybookjs/storybookView

mendableai

firecrawl

The 2026 default for LLM-grade scraping. Fires Playwright behind the scenes, returns clean markdown ready to feed into RAG. Self-host for free or use the hosted tier — both expose the same API. The sw…

Scraping & CrawlingAI & ML

You're building a RAG agent, a competitive-intel tool, or any system that ingests web content as training/search data.

You're scraping structured APIs (JSON endpoints) — overkill. Use plain fetch + Zod.

mendableai/firecrawlView

apify

crawlee

Node-native crawler from the Apify team. Built-in queues, retries, proxy rotation, headless browser pool — production patterns out of the box. Switches between Playwright, Puppeteer, and plain HTTP ba…

Scraping & Crawling

You need to crawl hundreds of thousands of pages reliably in TypeScript or Node.

A 50-line Playwright script will do — Crawlee is overhead for a quick scrape.

apify/crawleeView

scrapy

The Python scraping veteran. Mature ecosystem, plugins for everything (caching, proxies, middlewares), and a years-honed pipeline architecture. Steeper learning curve than the modern alternatives but…

Scraping & Crawling

You're a Python team scraping at scale and want middleware/pipeline patterns out of the box.

You're scraping JS-heavy SPAs — Scrapy needs Playwright integration which is awkward; Crawlee is cleaner.

scrapy/scrapyView

microsoft

playwright

The browser automation library the rest of the scraping tools depend on. Direct API for when you want fine-grained control: stealth mode, anti-bot bypass, multi-context, headless or headed. Also doubl…

Scraping & CrawlingTesting

You want a single library that scrapes AND runs your E2E tests — one toolchain, two jobs.

You only need HTTP + HTML parsing (no JS execution) — Cheerio or BeautifulSoup will be 10x faster.

microsoft/playwrightView

puppeteer

Chrome-only browser automation from Google. Slightly more raw than Playwright with fewer batteries included, but lighter weight and battle-tested on Chrome quirks. The choice when Playwright's multi-b…

Scraping & Crawling

You're Chrome-only and want a thinner abstraction than Playwright.

You need Firefox or Safari support — Playwright handles those, Puppeteer does not.

puppeteer/puppeteerView

cheeriojs

cheerio

jQuery-style HTML parsing for Node, with no browser. Ridiculously fast because it never renders JS. The default when you're scraping server-rendered pages (most blogs, docs, news, marketplace listings…

Scraping & Crawling

The page works without JavaScript — view-source contains the content you want.

The page renders content client-side (SPA, infinite scroll) — you need Playwright/Puppeteer.

cheeriojs/cheerioView

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Matches for "testing"

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