All JavaScript Tools
Explore the current tool library for QR codes, random values, UUIDs, invoices, and implementation guides. Each page is built to solve a specific JavaScript workflow without forcing a signup first.
QR
Build URL, Wi-Fi, vCard, email and SMS QR codes in the browser, with the exact payload string, the escaping rules, and copy-ready code for each format.
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Drop a logo into the middle and see how much of the code it covers, then export a PNG or SVG at print size — or a 200-label A4 sheet built from a CSV.
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Generate secure random strings for passwords, tokens, slugs, and test data with flexible output formats.
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Create professional invoices online and export them as PDF with printable layouts and implementation references.
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Generate UUIDs online for JavaScript and Node.js workflows, including copy-ready output and version guidance.
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Review Math.random(), range formulas, secure randomness, and implementation examples in one place.
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