Units and formats
Convert length, mass, temperature, area, volume, speed, pressure, energy, time and data size, switch between number bases, or turn JSON into CSV, YAML or TypeScript and back.
Online converters
Converters for units, images, PDF files, data formats, colors and number bases. Files are converted in your browser, so nothing is uploaded and you do not wait for a server.
39 showing
01 Number Base Converter Convert between bases 2 through 36.math02 Unit Converter Length, mass, temperature, data and more.math03 PNG to JPG Flatten a PNG onto white and download a JPEG.converter04 JPG to PNG Re-encode a JPEG as a PNG.converter05 Image to WebP Encode PNG, JPEG or WebP as WebP.converter06 Image to AVIF Encode an image as AVIF right in the browser.converter07 Image Compressor Reduce JPEG or WebP size with a quality slider.converter08 Image Resizer Fit an image inside a width and height.converter09 Image Cropper Drag a rectangle and export that region.converter10 Image Format Information Type, dimensions and file size from the file itself.converter11 PDF to Images Render each page to PNG or JPEG.converter12 Images to PDF Place PNG or JPEG files on PDF pages.converter13 Merge PDF Join two or more PDFs in order.converter14 Split PDF One PDF file per page.converter15 Rotate PDF Rotate every page by 90, 180 or 270 degrees.converter16 Extract PDF Pages Keep pages such as 1-3,5.converter17 Compress PDF Rewrite the PDF and report the real size change.converter18 QR Code Generator Create a QR code and download the PNG.converter19 Barcode Generator CODE128, CODE39, EAN-13 and UPC.converter20 JSON Formatter Pretty-print JSON with a chosen indent.developer21 JSON Minifier Strip insignificant JSON whitespace.developer22 JSON to TypeScript Infer an interface from a JSON sample.developer23 JSON to CSV Turn an array of objects into CSV.converter24 CSV to JSON Parse CSV, including quoted commas.converter25 XML Formatter Pretty-print XML and check that tags balance.developer26 YAML Formatter Parse YAML and print it in a stable form.developer27 Markdown to HTML Render Markdown and sanitize the HTML.converter28 HTML to Markdown Convert an HTML fragment into Markdown.converter29 Unix Timestamp Converter Seconds, milliseconds, ISO and local time.developer30 Color Format Converter HEX, RGB and HSL from one value.developer31 JSON to YAML Turn a JSON document into YAML.developer32 YAML to JSON Turn YAML into formatted JSON.developer33 TSV to JSON Tab-separated rows become objects.developer34 Roman Numerals Convert 1–3999 to and from Roman numerals.math35 Query Builder Turn key=value lines into a query string.developer36 Human Bytes Show a byte count in KB, MB or GB.developer37 Markdown Table CSV rows become a Markdown table.developer38 CSV Delimiter Replace one delimiter with another.developer39 HTML Table CSV rows become table cells.developer
About
Images and PDF without upload
Convert PNG, JPG, WebP and AVIF, compress and resize pictures, merge, split and compress PDF files, or turn a PDF into images. The original file never leaves your device.
FAQ
Frequently asked questions
Are my files uploaded when I convert them?
No. Conversion runs in your browser, and the file stays on your device.
Is there a file size limit?
There is no server limit. Very large files depend only on the memory available in your browser.
Which units can I convert?
Length, mass, area, volume, speed, temperature, pressure, energy, time and data size, in metric and imperial units.