No signup. No tracking. 100% client-side — every tool runs in your browser, nothing gets uploaded.
Live: https://toolaspect.com · Reference tables: https://toolaspect.com/reference/ · All converters: https://toolaspect.com/converters/
- Private by design — static pages, zero backend, zero data collection. Your inputs never leave your device.
- Fast — every page is a self-contained HTML tool, typically < 50 KB.
- Free forever — no accounts, no paywalls, no limits.
| Category | Highlights |
|---|---|
| Calculators | Percentage · BMI · Age · Tip · Mortgage |
| Developer | JSON Formatter · Regex Tester · Base64 · UUID Generator · Cron Generator · LLM Pricing Tracker |
| Converters | Currency · Crypto · Unit Converter · Epoch · 680+ more |
| Reference | Times tables · ASCII · HTTP codes · Roman numerals |
All 1,400+ tools: https://toolaspect.com/all-tools/
Any ToolAspect page can be embedded as a privacy-friendly widget:
<iframe src="https://toolaspect.com/embed/" style="width:100%;height:600px;border:0" loading="lazy" title="Free online tools"></iframe>Fully static site deployed on Cloudflare Pages. No frameworks, no trackers, no cookies required. Sitemap-driven, schema-marked (FAQ/HowTo/Breadcrumbs), AI-crawler friendly (/llms.txt).
Site content © ToolAspect. Tool implementations are simple, readable client-side JavaScript — feel free to learn from them.