Open source dev tools: automation, CRM, APIs & error tracking

Four open-source tools to automate scraping, manage customer data, build APIs, and track production errors—all self-hostable and developer-friendly.

• Browserless

  Automate scraping on any website. Bypass CAPTCHAs and bot detectors with BrowserQL, scale with Browsers as a Service, or self-host. Works with Puppeteer, Playwright, and REST APIs.

• Twenty

  Open-source CRM to manage customer data. GPL-licensed alternative to Salesforce/HubSpot—customize data models, automate workflows, and own your software. Backed by Y Combinator.

• Hoppscotch

  Open-source API development toolkit. Build, test, and share APIs with HTTP, GraphQL, WebSocket, MQTT, and more. Workspaces, real-time collaboration, and self-hostable—trusted by millions of developers.

• Bugsink

  Self-hosted error tracking for production. Drop-in Sentry replacement—compatible with Sentry SDKs, 80% cheaper at scale, and fully self-hostable. Track stacktraces, local variables, and sourcemaps.