Tutorials, guides, and news about browser-based file conversion, privacy, and tooling.
Modern image formats deliver faster pages. Learn when to use WebP, AVIF, JPG, and PNG — plus how to convert between them for free.
A guide to using cryptocurrency data tools for gas estimation, smart contract analysis, token holder tracking, and transaction verification.
Master image optimization for faster page loads and better search rankings. Covers WebP, AVIF, lazy loading, responsive images, and alt text best practices.
Learn how to fill, sign, and save PDF forms for free using browser-based tools. No expensive software needed — works on any device.
Everything you need to know about the EPUB e-book format — how it works, how to create and convert EPUBs, and the best reading apps.
A comprehensive comparison of modern video formats including MP4, WebM, MKV, and the next-gen AV1 codec. Learn which format is best for your use case.
Learn how to protect sensitive files before sharing them. Covers encryption, password-protected archives, secure transfer methods, and common mistakes to avoid.
Expert tips for converting between document formats while preserving formatting, structure, and accessibility.
Save hours by processing multiple images at once. Learn batch conversion, resizing, and compression techniques — all in your browser.
Create, extract, and manage ZIP files directly in your browser. No desktop software, no upload — free and private.
A beginner-friendly explainer on file encryption algorithms, how they work, and how to encrypt files securely in your browser.
A clear comparison of popular audio formats — quality, file size, compatibility, and when to use each one.
Learn practical techniques to compress video files for email, web, and storage. Includes browser-based tools that work without uploading.
Learn how to create accessible PDFs that work with screen readers, meet WCAG standards, and reach the widest audience.
Understand the differences between HEIC and JPG — file size, quality, compatibility, and when to convert between them.
Most online converters upload your files to remote servers. Learn why local-first processing is safer, faster, and the future of web tools.
A comprehensive guide to the best free online PDF tools that process files in your browser. Compare compression, merging, splitting, and conversion options.
Create animated GIFs from any video clip right in your browser. Trim, resize, and adjust frame rate — no uploads, 100% private, no watermarks.
A practical guide to keeping file backups safe in 2026 — encryption strategies, cloud storage picks, and how browser-local tools reduce upload risk.
Combine multiple PDF files into one in seconds. Uses your browser alone — no uploads, no account, and your documents never leave your device.
Extract text from any image without uploading it. Our browser-based OCR tool works entirely client-side — fast, private, and completely free.
Learn how to extract audio from any video file entirely inside your browser. No uploads, no servers, 100% private using ConvertCraft.
Step-by-step guide to reducing PDF file size in your browser — no uploads, no software, and no quality loss using ConvertCraft's free PDF compressor.
ConvertCraft 2026 brings 60+ privacy-first browser tools for images, video, audio, PDF and more — with zero file uploads and no account required.