Client-Side File Converter & Compressor
Compress & convert PNG, JPG, WebP images and merge PDFs directly in your mobile or desktop browser. No queues, no file limits, absolute privacy.
Tap or Drop Photos to Convert & Compress
Supports JPG, PNG, WebP, AVIF, HEIC, SVG, BMP & GIF • 100% Client-Side
Compression & Format Settings
Enable to automatically dial in quality and scale to match your required target file size (e.g. for portals with strict 200KB upload limits).
100% Client-Side Privacy
Files are never sent to external servers or cloud storage. Sensitive medical scans, IDs, receipts, and photos remain entirely on your device.
Optimized for Low INP
Bicubic image resampling and PDF stream packing run asynchronously, leaving the UI thread unblocked for instantaneous touches and 60fps sliders.
Mobile Touch Ergonomics
Thumb-accessible dropzones, large target sliders, instant side-by-side comparison viewers, and one-tap direct batch zip downloads.
Popular Mobile Utilities
Pre-configured client-side tools designed for exam portals, visas, and mobile workflows
Compress Image Under 20KB
Accurately compress your signature, thumb impression, or photo to under 20KB in your browser. Strictly 100% local processing with zero server uploads.
Compress Image Under 50KB
Reduce passport pictures and photo IDs to under 50KB with razor-sharp facial clarity. Zero cloud uploads, zero watermarks, 100% on-device.
Compress Image Under 100KB
Downscale and compress pictures under 100KB in seconds without cloud uploads. Ideal for college admissions, Discord, and mobile web uploads.
Convert iPhone HEIC to JPG
Turn iPhone HEIC and HEIF photos into universal JPGs instantly. Decoded locally in your browser memory — no uploads, no cloud storage, zero privacy risk.
Convert iPhone HEIC to PNG
Turn iPhone HEIC and HEIF photos into crisp, uncompressed PNGs instantly. Decoded locally in your browser memory — no cloud uploads, zero privacy risk.
Convert iPhone HEIC to WebP
Convert iPhone HEIC and HEIF photos to modern WebP format for 30%+ smaller file sizes and instant web delivery. 100% client-side decoding.
Convert WebP to Transparent PNG
Convert mobile and web WebP downloads into lossless PNG files with perfect transparent backgrounds. Instant, local, and free.
Convert PNG to WebP Online
Transform heavy PNG graphics into lightweight, next-gen WebP images with full alpha transparency. Boost Core Web Vitals and site speed.
Compress PDF Under 200KB
Shrink multi-page scanned documents, bank statements, and resumes to under 200KB right on your phone. Zero servers, zero waiting.
Merge PDF Files on Mobile
Combine receipts, assignments, and documents into one organized PDF right in your mobile browser. Fast, private, and thumb-friendly.
Convert WebP to JPG
Instantly convert Google WebP photos to universally compatible JPG images directly in your browser. No size limits, no waiting, 100% private.
Convert JPG to WebP
Shrink JPEG images by up to 80% for websites, blogs, and apps without losing visual fidelity. 100% client-side conversion.
Convert SVG to PNG
Turn SVG vector files into high-resolution transparent PNG images with custom scaling. Processed 100% locally on your device.
Convert AVIF to JPG
Open and convert modern AVIF images to standard JPEG format instantly in your mobile or desktop browser without uploading to external servers.
Convert PNG to JPG
Convert PNG graphics to standard JPG photos with automatic white background fill for transparent areas. 100% client-side execution.
Frequently Asked Questions
Learn how FileConvert delivers instant, zero-server file processing right inside your browser.