101convert.com

Free online tools

Handy browser-based utilities - unit converter, QR codes, hashes, metadata and more. Everything runs on your device.

Most tools run entirely in your browser. Only the text encoding converter uploads the file to the server for conversion - it’s deleted right after processing.

File tools

File info See a file’s type, size, MIME and signature - nothing is uploaded. Metadata viewer Read EXIF from photos and info from PDFs - camera, date, GPS, pages. Image resizer Resize or convert an image (JPG/PNG/WebP) right in your browser.

Converters & data

Text encoding converter Convert a text file between encodings (Windows-1250, ISO-8859-2, UTF-8…) and fix broken accented characters. Unit converter Convert data sizes (KB, MB, GB…), length and pixel density (DPI). Base64 encode / decode Encode text to Base64 or decode it back - UTF-8 safe, URL-safe option. Color converter Convert colors between HEX, RGB and HSL, with a live preview. Text case converter Change text case and count characters, words and lines.

Generators

QR code generator Turn any text or URL into a QR code - download as PNG or SVG. Hash generator Compute MD5, SHA-1, SHA-256 and SHA-512 of text or a file.