QuestStack

The QuestStack directory

Developer tools.

Explore developer tools, APIs and platforms for building, testing and shipping software. Filter for open source, self-hostable and more. The latest bump takes #1; this is a discovery feed, not a quality ranking.

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Anvil CRM logo

Anvil CRM

A lightweight, agentic CRM for growing businesses

CRMPlans start at $15 per user per month. Start a 14-day free trial, no card details required.AI-powered · Public API · Free trial
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Growo logo

Growo

Free child growth percentile tools, built by a physician

Health & lifestyleFree web tools with no sign-up; paid iOS/Android app with a free trialAndroid · Free trial · iPhone & iPad
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AI Excel Translator logo

AI Excel Translator

Translate Excel and CSV files with AI, layout intact

ProductivityFreemium (Free $0: 10,000 English characters per month; CJK 2,500; Starter $9.99/month 1 million chaAI-powered · Free plan · Subscription
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twelvebit logo

twelvebit

Privacy-friendly web analytics that shows which channels bring paying customers, with revenue attribution, funnels and a live globe.

Analytics & dataSee website for plansAI-powered · Public API · Free trial
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