Show HN: Stackzero - The Smarter Way to Discover Free Developer Tools

Stackzero, a new platform for discovering free developer tools, launched with 97 indexed tools scored across 15 categories. The site offers opinionated rankings, head-to-head comparisons, and exportable stacks to help developers choose tools based on generosity, developer experience, and open-source friendliness.

Updated weekly • 97 tools indexed Ranked Free Developer Tools Opinionated scores across 15 categories — from PaaS and DBaaS to LLM APIs. Filter by Free Forever / No CC, compare head-to-head, export your stack. 15 Categories 97 Tools 6 Score axes More useful Apps: Ask from Video https://vidrag.revoseek.com and Realtime Course Generator https://csprep.revoseek.com . Average Total Score by Category Scores normalized to /100. Click a category pill above to drill into individual tools. All Tools Ranked Multi-column sorting Click a column to sort. Shift + click to add a secondary / tertiary sort. Click again to flip Asc / Desc, third click removes it. Current sort order is shown as numbered badges. Sort: | Tool | Score | Generous | DX | OSS | Time | CC | TLS | Link | |---| Head-to-Head | Metric | A | B | Winner | |---| Select two tools from any category to compare pricing friction, DX, OSS friendliness, and more. Scoring methodology Each tool is scored 0–10 on 6 axes, for a 60-point total, normalized to /100 in the UI. - Generosity — Free-tier limits, usage caps - DX — Docs, CLI, SDKs, onboarding - OSS Friendly — Open source / self-host options - Scaling — Clear upgrade path, egress pricing - Unlimited — Unlimited projects / seats / apps - Depth — Feature completeness on free Plus 3 friction flags: Time Bucketed Forever / Trial , CC Required , TLS Free . tool: "Example" generosity: 9 scaling: 8 dx: 10 oss: 8 unlimited: 6 depth: 8 timeBucket: "forever" forever | trial ccRequired: "no" yes | no tlsFree: "yes" yes | no total: 49 sum, max 60 score 100: 82 total/60 100 source: "World Wide Web"