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

> Source: <https://stackzero.revoseek.com>
> Published: 2026-06-26 06:18:07+00:00

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"
```