Online toolbox
Invoices, QR codes, images, text and conversions. Choose a category to get started.
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Business tools
Invoices, quotes, QR codes and printable labels.
Tools and guides →QR codes and labels
Create static QR codes for URLs, Wi-Fi, contacts and more. Import CSV, check decoding, export PNG, SVG, JPG or PDF, and print A4 or Letter labels locally.
Business toolsInvoices and quotes
Prepare invoices and quotes with line items, discounts, tax and payments. Export documents, save JSON backups and print PDFs locally.
Business tools7 TOOLS
Image processing
Resize, convert, compress, watermark, and prepare images.
Tools and guides →Print prep
Prepare photos for print with crop or fit, paper dimensions, margins and PPI. Keep pixel dimensions without resampling, or batch export sized copies.
PrepareBatch resize
Batch resize JPG, PNG and WebP by percentage, longest edge or maximum dimensions. Keep proportions, prevent enlargement and download images with CSV reports.
PrepareCompress images
Compress JPG or WebP toward a target KB size, compare the actual result, or batch export a ZIP. PNG is supported; images stay in your browser.
Image processingConvert image format
Convert WebP to JPG or PNG online, one image or a batch of up to 12. Choose quality and a JPG background, then download a ZIP. Files stay on your device.
Image processingAdd a watermark
Add multiple text layers, drag them into place, rotate them, or repeat a watermark across your image.
Image processingHEIC to JPG and more
Convert HEIC or HEIF still photos locally to JPG, PNG and more. Rotate, resize, set quality or print PPI, then download individual images or a ZIP.
Image processingAVIF to JPG and more
Convert still AVIF images to JPG or transparent PNG locally. Choose the JPG background, rotate, resize and batch download. AVIF decoding depends on your browser.
Image processing1 TOOLS
Store image checks
Review image dimensions against published marketplace guidance.
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Converters
Convert measurements and Unix timestamps.
Tools and guides →5 TOOLS
Developer tools
Validate data, test patterns, and encode text locally.
Tools and guides →JSON formatter
Validate, format, and minify JSON with local processing and downloadable results.
Developer toolsRegex tester
Test JavaScript regular expressions with match positions, capture groups, and a time limit.
Developer toolsURL encoder / decoder
Encode and decode URL components or complete URLs without sending text to a server.
Developer toolsBase64 text converter
Encode UTF-8 text as Base64 or decode Base64 into readable UTF-8 text locally.
Developer toolsText comparison
Compare text and UTF-8 files with line and character differences, ignore rules, batch processing and downloadable reports.
Developer tools4 TOOLS
Print calculators
Plan print size, resolution, ratios, and bleed.
Print size
Convert image pixels and a chosen PPI into print dimensions in inches, centimeters, or millimeters without changing the image.
CalculateEffective PPI
Check image pixel density at a specific print size. Compare crop and fit PPI, review each axis, and spot a mismatch before printing.
CalculateAspect ratio
Find an image’s width-to-height ratio and calculate proportional dimensions for a new width or height without stretching the image.
CalculateBleed
Calculate artwork dimensions with an equal bleed on every edge, preview a chosen safe inset, and estimate pixels at your selected PPI.
Calculate