Free · no sign-up · no quota

Free Browser Tools

Convert CSV, JSON, YAML and XML, encode or decode Base64, convert timestamps, time zones, colors and units, and make QR codes — right in your browser. The work happens on your device, nothing is uploaded, and these tools never count against a plan.

Data formats

CSV to JSON Convert CSV to JSON online for free. Paste or open a CSV file, choose the delimiter and get a JSON array of… JSON to CSV Convert JSON to CSV online for free. Nested objects are flattened into columns, arrays of objects become… JSON to YAML Convert JSON to YAML online for free, for Kubernetes, Docker Compose, CI files and configs. Instant, private,… YAML to JSON Convert YAML to JSON online for free. Validates YAML, supports anchors and multiple documents, pretty or… JSON to XML Convert JSON to XML online for free. Choose the root element, turn @keys into attributes, get indented XML.… XML to JSON Convert XML to JSON online for free. Attributes, repeated elements and text are mapped predictably. Paste or…

Base64

Base64 Encode Encode text to Base64 online for free. UTF-8 safe, URL-safe Base64 and MIME line breaks. Runs in your browser… Base64 Decode Decode Base64 to text online for free. Standard and URL-safe Base64, data URIs and line breaks are handled.… Image to Base64 Convert an image (PNG, JPG, SVG, WebP, GIF…) to Base64 or a data URI for HTML and CSS. Free, instant, and the… Base64 to Image Convert Base64 or a data URI back to an image: see it, check its type and size, and download it. Free,…

Date & time

Unix Timestamp Convert a Unix timestamp (epoch) to a date and a date to a timestamp. Seconds, milliseconds, microseconds,… Time Zone Converter Convert a time between time zones: pick a date and time in one city and see it everywhere else, with daylight…

Colors

Color Converter Convert colors between HEX, RGB, HSL, HSV and CMYK, pick a color, check contrast against white and black, and…

QR codes

QR Code Generator Make a QR code for a link, text, Wi-Fi network, e-mail, phone, SMS or contact card. Custom colors, PNG or SVG…

Units

Unit Converter Convert length, weight, temperature, area, volume, speed, data and more — instantly, for free.

Why in the browser?

Text formats like CSV, JSON, YAML and XML, and encodings like Base64, do not need a server: your browser can handle them in milliseconds. Keeping the work on your device means configuration files, exports and API responses with private data are never sent anywhere.

For documents, images, video, audio, ebooks and other files, use our file converter — over 400 formats, with a free monthly allowance.