Finance
Stock Average Calculator
Weighted average cost, total shares, break-even price, and unrealized P/L from multiple lots.
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On your device
Tools that stay on your device.
Free browser tools. No signup. Nothing uploaded.
- No signup
- Nothing uploaded
- Everything stays on the device
Open a tool
Finance
Paycheck Calculator Hourly
Gross pay per paycheck from an hourly rate or salary — weekly, biweekly, semimonthly, or monthly.
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SEO
UTM Builder
UTM generator, maker, and link builder for campaign URLs — including bulk CSV — all in the browser.
Copy URL →
SEO
Robots.txt Builder
Robots.txt builder and robot.txt generator for allow/disallow rules, user-agent groups, sitemap URLs, and AI crawler extras.
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Developer
UUID Generator
Generate UUID v4 and UUID v7 (also used as an online GUID generator) with bulk copy.
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Convert
HEIC to PNG Converter
Convert HEIC and HEIF photos to PNG in the browser. Batch convert, then download — files never leave the device.
Convert →