Devokk

DevOkk is a free collection of more than 100 browser based tools for code, files, data, and everyday work. It is built for developers, students, freelancers, and anyone who needs to finish a small technical task quickly without installing software or creating an account.

The tools are grouped into clear categories. JSON tools include a formatter, viewer, minifier, editor, JSONPath query, compare, repair, schema validator, and graph visualizer. Converters handle XML, CSV, and YAML to JSON, JSON to CSV, and timezone conversion. Image tools compress images and convert between JPG, PNG, WebP, HEIC, SVG, and GIF.

The PDF section is the largest, with 39 tools to merge, split, compress, rotate, sign, redact, watermark, flatten, encrypt, unlock, fill forms, and convert PDFs to and from Word, Excel, HTML, CSV, and images.

Security tools cover Base64 encoding, hash generation, JWT decoding, UUID generation, a password generator and strength checker, and metadata viewing and removal. Networking tools include DNS record lookup, SSL certificate checker, HTTP header viewer, ping test, reverse IP lookup, and an API tester. SEO, text, and CSS tools cover meta tag extraction, Open Graph and search snippet previews, regex testing, case conversion, color palettes, CSS animations, and favicon generation. Validators check JSON, JSON5, CSS, JavaScript, XML, and YAML.

DevOkk also includes business tools such as a resume builder, invoice generator, QR code generator, and barcode generator, plus over 100 calculators and unit converters for math, physics, chemistry, health, and fitness.

Most tools run directly in your browser, so your files and data are processed locally instead of being uploaded. A few tools, such as DNS lookup, SSL checks, and the API tester, need to contact external servers to work. Every tool is free and requires no registration.

Visit devokk.com/tools to browse all tools by category.