Compare and convert between A0, A1, A4, Letter, and Legal paper sizes. Understand how many sheets of one size fit into another. Everything runs locally in your browser — nothing is uploaded.
Convert data sizes between bytes, KB, MB, GB, TB, and PB. Understand disk space and file sizes in different units.
Calculators (study time, test score, tip, triangle, volume converter, words per page, working capital, pythagorean theorem, scientific calculator), size converters (ring size, screen size, shoe size), and ZIP file extractor. (WebP to JPG/PNG and PDF page operations have their own dedicated pages.)
Convert clothing sizes between US/Canada, UK, EU, Japan, and France sizing systems. Supports women's apparel size conversions with international standards.
Convert an entire folder of audio files between MP3, WAV, OGG, FLAC, and M4A formats in one batch with consistent quality and bitrate settings.
Bidirectional converter between Excel spreadsheets (XLSX) and CSV files. Select sheets, choose delimiters, and preview data before converting.
Paper Size Converter lets you compare and convert between A0, A1, A4, Letter, and Legal paper sizes. Understand how many sheets of one size fit into another. Everything runs locally in your browser — nothing is uploaded.. It works on any device with a modern web browser.
Compare and convert between A0, A1, A4, Letter, and Legal paper sizes. Understand how many sheets of one size fit into another. Everything runs locally in your browser — nothing is uploaded. It's ideal for developers, designers, and anyone who needs to compare and convert between a0, a1, a4, letter, and legal paper sizes without installing software or sending data to external servers.
Direct text entry, file upload, or URL-based input — depending on the tool. Common file formats are supported for upload-based tools.
Yes. After the initial page load, Paper Size Converter runs entirely on your device with no internet connection needed. All processing is done locally.
Yes, this tool is completely free. No credit card or registration is required for standard usage.
All processing happens 100% locally in your browser. Your data is never uploaded to any server.
Yes. Once the page has loaded, the tool runs entirely offline without requiring an internet connection.
Standard tools are unlimited. Pro tools allow free daily usage with an option to upgrade.
Any modern web browser (Chrome, Firefox, Safari, Edge) on desktop or mobile. No installation needed.
Privacy Cleaner
Scans and clears browser cookies, localStorage, sessionStorage, and cached data for the current site.
Speed Test
Measures your internet connection’s download speed, upload speed, and latency by transferring real test data to geographically distributed servers.
Wheel of Names
Displays an animated spinning wheel that randomly selects one entry from a customizable list of names or options.
QR Code Generator
Renders a scannable QR code from any text or URL using a client-side Reed-Solomon encoder. Download as PNG.
Random Number Generator
Generates cryptographically secure random integers or decimals within a user-defined min-max range with optional repetition filtering.
Resume Builder
Provides a structured, form-based interface for entering work history, education, and skills, then renders a professionally formatted PDF resume.