Convert, compress, merge, and sign PDFs, images, or format data directly in your browser. FileSwift processes every file locally on your own device-no accounts, no queues, and 100% private.
Combine one or many photos into a single PDF.
Turn every page of a PDF into a downloadable image.
Shrink an oversized PDF, especially scans and photo-heavy files.
Combine multiple PDFs into one, text still selectable.
Break a PDF into individual, real PDF pages.
Fix sideways pages and drag pages into a new order.
Draw a signature and place it on any page.
Encrypt a PDF so it can't be opened without a password.
Remove passwords and decrypt PDF security permissions directly in your browser.
Add secure, customizable page numbering formats and alignments offline.
Add text overlays like DRAFT or CONFIDENTIAL with custom opacity and angles.
Extract text from scanned PDFs in your browser. Batch supported, results as TXT files.
Permanently black out sensitive text and numbers. Image flattened for 100% security.
Strip author names, software tags, creation dates, and hidden metadata.
Hit an exact KB target for forms with a strict size limit.
Set exact pixel dimensions, with aspect ratio locked or free.
Crop photos to square, social media aspect ratios, or custom sizes offline.
Compress a photo for passport, visa, or ID uploads.
Generate a proper multi-size favicon.ico from a logo.
Switch formats with a quality slider.
Convert iPhone photos to JPG, one at a time or in batch.
Format, prettify, minify, and validate raw JSON data offline.
Clean GPS tags, camera details, and EXIF metadata from photos locally.
Convert CSV files to JSON or JSON arrays to CSV offline instantly.
Encode text or images to Base64 strings, or decode Base64 data locally.
Create custom QR codes offline for links, text, Wi-Fi networks, or emails.
Scan and decode QR codes from image files or screenshots privately offline.
Count words, characters, sentences, and paragraphs locally with no length limits.
Reduce video file size by adjusting bitrate and resolution locally.
Cut video clips with instant stream-copy or frame-accurate re-encoding.
Transcode videos between MP4, WebM, MOV, AVI, and MKV.
Extract sound tracks from video files into MP3, WAV, or AAC.
Convert video clips to animated GIF using two-pass color palette generation.
Remove audio and sound tracks instantly using stream-copying.
Permanently transpose video frames 90° CW, 90° CCW, or 180°.
Downscale video pixel dimensions to 1080p, 720p, 480p, or 360p.
Combine multiple video clips into one continuous video file.
Speed up or slow down video playback with pitch-corrected audio.
Burn custom text watermarks directly onto video frames.
1-click optimizer that caps video to 30s and compresses under 16MB.
Guided checklist and tools for Pasfoto, Swafoto, Scan KTP, and Ijazah PDF for BKN portal.
Prepare headshots, compress resume PDFs, merge certificates, and sanitize file metadata.
Crop 1:1 / 3:4, compress product photos under 2MB, and convert iPhone HEIC to JPG.
Every conversion runs in your browser tab using JavaScript & WebAssembly. No file is ever uploaded to a server, so there's no queue, no email wall, and zero data leakage.
Works the moment the page loads. Close the tab and it's gone - nothing is stored, logged, or remembered between visits.
Each tool does exactly one task well with optimized algorithms instead of a bloated do-everything interface.
Most free online file converters (PDF mergers, video compressors, image resizers) require you to upload your sensitive files across the internet to their remote servers. Once uploaded, your private contracts, medical scans, family photos, and financial records sit on third-party cloud disks-vulnerable to data breaches, scraping, or permanent logging.
FileSwift was built from the ground up on a strict zero-upload architecture. Modern web browsers are powerful virtual machines capable of compiling C/C++ libraries into WebAssembly and executing complex mathematical image transformations directly in local memory. By running all processing client-side, FileSwift offers three fundamental guarantees:
| Feature | Traditional Cloud Converters | FileSwift Client-Side Architecture |
|---|---|---|
| Data Privacy | Uploaded to remote servers (potential storage / logs) | 100% Local: Files never leave your device memory |
| Processing Speed | Limited by upload/download internet bandwidth | Instant: Runs at full CPU/GPU hardware speed |
| Offline Usability | Requires active, fast internet connection | Works Offline: Operates even with internet disconnected |
| Usage Restrictions | Daily quotas, email paywalls, size caps | Free & Unlimited: No accounts, no paywalls |
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PDFEmail attachments capped at 25MB? Step-by-step methods to shrink scanned contracts and PDF reports.
ImageStandard dimensions, background colors, and pixel requirements for US, EU, and Asian visa applications.
FileSwift uses modern web technologies including HTML5 File APIs, WebAssembly, and client-side JavaScript. When you select a file, it is loaded directly into your browser's local sandbox memory. All conversions, compression passes, and rendering happen on your device's own processor.
Yes. Once you load any tool page, all necessary processing scripts are cached in your browser. You can turn off Wi-Fi or enable Airplane Mode and continue converting, compressing, and editing your documents offline.
There are no subscriptions, daily quotas, or paywalls. File size limits depend solely on your device's available RAM memory. Desktop computers can process files up to 2 GB, while mobile phones comfortably handle files up to 400 MB.
Yes. You can use FileSwift for personal, educational, corporate, or commercial file workflows free of charge.