Powerful Tools, Zero Cost
52 free tools that run entirely in your browser — remove backgrounds, make passport photos, edit PDFs, convert video and audio, compress, upscale and more.
Encrypt & Decrypt
Lock a file or message with AES-256 and a password. The password never leaves your browser.
Barcode Generator
Create Code 128 and EAN-13 barcodes as sharp SVG or PNG, with check digits worked out for you.
Colour Picker
Pick any colour from your screen or an image and copy it as HEX, RGB or HSL.
Code Playground
Write and run HTML, JavaScript or Python in your browser. No install, no server, no sign-up.
Blur & Redact Image
Blur, pixelate or black out faces and personal data. The pixels are destroyed, not covered.
Screenshot Beautifier
Put a screenshot on a gradient backdrop with rounded corners and a soft shadow.
PDF to Text
Extract editable text from any PDF, page by page, without uploading the document.
Extract PDF Images
Pull the embedded images out of a PDF at their original resolution.
Audio Joiner
Merge several audio clips into one track, in the order you choose.
Webcam Capture
Take a photo with your webcam or phone camera. Nothing is uploaded.
QR Scanner
Scan a QR code with your camera. Frames are decoded in the page, never uploaded.
JSON Formatter
Pretty-print, minify and validate JSON with errors that point at the exact line.
Base64 Encoder
Encode text to Base64 and decode it back, with full Unicode and URL-safe support.
URL Encoder
Percent-encode a query value or a whole URL, and decode one back again.
Case Converter
Convert between upper, lower, title, sentence and every programmer case.
Word Counter
Live word, character, sentence and paragraph counts with reading time.
Text Compare
Compare two texts line by line and see every addition and removal.
UUID Generator
Cryptographically random RFC 4122 version 4 identifiers, in bulk.
Lorem Ipsum
Placeholder paragraphs, sentences or words for mockups and layouts.
Voice Recorder
Record from your microphone straight in the browser. No upload, no time limit, no sign-up.
Screen Recorder
Capture your screen, a window or a tab with narration. Encoded locally, no watermark.
Password Generator
Strong random passwords from the browser's cryptographic source. Never transmitted.
File Checksum
Generate and verify SHA checksums for any file without uploading it anywhere.
Text to Speech
Paste any text and hear it read aloud by the voices already on your device. No uploads, no model download.
Background Remover
Cut any subject out of its background and download a transparent PNG. Runs in your browser — no uploads, no watermark.
Passport Photo Maker
Official passport and visa photo sizes at 300 DPI, with background replacement and a print-ready sheet.
Image to PDF
Combine photos, screenshots and scans into a single PDF with real page sizes.
PDF to JPG
Render any PDF page as a PNG or JPG image at up to 300 DPI, and download the set as a ZIP.
Merge PDF
Combine any number of PDFs into a single document, in the order you arrange them.
Split PDF
Extract a page range into a new PDF, or burst a document into one file per page.
Compress PDF
Shrink a large or scanned PDF so it fits an email or upload limit, with before-and-after sizes.
Sign PDF
Draw or type your signature, click where it belongs on the page, and download the signed document.
Edit PDF
Rotate, delete and reorder pages, add a watermark or page numbers, and edit document metadata.
Protect PDF
Add real AES-256 password encryption to a PDF. The file and the password both stay on your device.
Unlock PDF
Remove the password from a PDF you can already open, and lift printing or copying restrictions.
Repair PDF
Rebuild a PDF that will not open, shows blank pages, or was truncated by a failed transfer.
Crop PDF
Trim white margins from scans and slides with a live preview, without flattening the page.
Compare PDF
Find exactly which words were added and removed between two versions of a document.
Image to Text (OCR)
Extract text from a photo, screenshot or scanned PDF in 12 languages, and copy it straight out.
QR Code Generator
Create QR codes for links, Wi-Fi, email and phone — or read one back from a screenshot.
Audio Converter
Convert between MP3, WAV, AAC and OGG, trim a recording, fix the loudness or add a fade.
Video Editor
Trim, compress, convert, turn a clip into a GIF, extract the audio or grab a frame — all in the browser.
Object & Watermark Remover
Brush over a watermark, date stamp or unwanted object and the gap is rebuilt from the surrounding pixels.
Watermark Tool
Protect your photos with a text or logo watermark, applied to a whole batch at once.
EXIF Viewer & Remover
See the camera, timestamp and GPS data hidden in your photos, then strip it without losing quality.
Profile Picture Maker
Circle crop any photo into a clean avatar with a transparent background and optional border ring.
Favicon Generator
Turn a logo into a complete favicon package with every size, a real .ico, and the HTML to paste.
Colour Palette Extractor
Pull the dominant colours out of any image as HEX, RGB and HSL, ready for your stylesheet.
Image Compressor
Reduce image file size while maintaining quality. Supports JPG, PNG, WebP and more.
Image Upscaler
Enhance your images with advanced interpolation algorithms. Upscale 2x or 4x without losing quality.
Format Converter
Convert images between formats instantly. Maintain quality with lossless processing.
Image Resizer
Resize images with precision for any purpose. Perfect for social media, passports, and custom dimensions.
Showing 52 of 52 tools — all free, no sign-up, nothing uploaded.
Powerful features, unmatched privacy
Professional editing that happens on your own device. No uploads, no tracking, nothing to sign up for.
100% Local Processing
Every pixel stays on your device. Our tools use WebAssembly to process images completely in your browser — no uploads, no cloud servers, no data leaks.
- No image uploads required
- Zero server communication
- Military-grade privacy
- End-to-end browser encryption
Lightning Fast Performance
Optimized WebAssembly algorithms process images 3× faster than traditional methods. Most operations complete in under 2 seconds with zero latency.
- WebAssembly optimized
- Real-time processing
- GPU acceleration
- No loading times
Advanced Algorithms
Sophisticated interpolation and compression algorithms deliver professional-grade results. Upscale up to 4×, convert formats, compress without quality loss.
- Bicubic interpolation
- Lanczos resampling
- Intelligent compression
- Quality preservation
No Tracking Guarantee
Zero analytics, no cookies, no telemetry. We don't use Google Analytics, Facebook pixels, or any third-party trackers. Complete anonymity guaranteed.
- Zero data collection
- No third-party cookies
- Anonymous usage
- GDPR compliant by design
Fully Offline Capable
Works without internet after initial load. Perfect for low-connectivity environments, traveling, or privacy-conscious users who prefer offline tools.
- No internet required
- Low bandwidth usage
- Airplane mode ready
- Progressive Web App
Universal Compatibility
Works on all modern browsers and devices. No plugins required — Chrome, Firefox, Safari, Edge, iOS, Android. Access your tools anywhere.
- Cross-browser support
- Mobile optimized
- Touch-friendly interface
- Responsive design
Local processing
Works offline
Server latency
Privacy guarantee
ModiFyX FAQs: Privacy-First Image Editing
Everything you need to know about our free, private image editing tools. No accounts, no uploads, complete privacy.
Yes, ModiFyX is completely free with no hidden costs, subscriptions, or premium tiers. All our image editing tools—upscaler, format converter, and compressor—are available at zero cost. We're committed to providing professional-grade image processing tools for everyone.
ModiFyX processes all images 100% locally in your browser using WebAssembly. Your images never leave your device, no data is uploaded to servers, and we don't use AI models that require external processing. Every pixel stays private with our end-to-end browser-based encryption.
ModiFyX supports all major image formats including PNG, JPG, JPEG, WebP, BMP, ICO, GIF, TIFF, SVG, and JFIF. We use custom algorithms for accurate format conversion while preserving image quality and transparency where supported.
Yes! ModiFyX works completely offline after the initial page load. All processing happens in your browser using cached WebAssembly modules, making it perfect for low-connectivity environments or privacy-conscious users who prefer offline tools.
ModiFyX uses custom build, advanced interpolation algorithms for upscaling. Our algorithms are optimized with WebAssembly for maximum speed and quality, processing images up to 4× their original size while preserving details and reducing noise.
ModiFyX uses intelligent compression algorithms that reduce file size while maintaining visual quality. You can adjust compression levels from maximum quality to maximum compression, with smart algorithms preserving important details while removing unnecessary data.
Absolutely not. ModiFyX has zero analytics, no tracking cookies, and collects no user data. We don't use Google Analytics, Facebook pixels, or any third-party tracking. Your image editing sessions are completely anonymous and private.
ModiFyX works on all modern browsers including Chrome, Firefox, Safari, Edge, and Opera. We use standard Web APIs and WebAssembly that are supported across all major browsers without requiring additional plugins or extensions.
Thanks to WebAssembly optimization, ModiFyX processes images significantly faster than traditional JavaScript-based tools. Most operations complete in under 2 seconds, with complex upscaling taking 3-5 seconds depending on image size and device performance.
While ModiFyX currently processes images one at a time for optimal quality and privacy, you can quickly process multiple images sequentially. Our tools maintain consistent settings between operations for efficient batch processing.
Yes! ModiFyX preserves transparency in formats that support it (PNG, WebP, GIF, TIFF, SVG). Our algorithms maintain alpha channels during conversion and upscaling, ensuring transparent backgrounds remain intact throughout processing.
ModiFyX can process images up to 16MP (megapixels) or approximately 5000×5000 pixels, limited only by your device's memory. For best performance, we recommend images under 8MP. Large images may take longer but will still process completely locally.
ModiFyX uses advanced interpolation algorithms to resize images while preserving sharpness and detail. Whether you're increasing or decreasing dimensions, our smart scaling technology minimizes pixelation and distortion, delivering high-quality resized images directly in your browser.
Yes! ModiFyX allows you to resize images for Instagram posts, Facebook covers, YouTube thumbnails, Twitter headers, LinkedIn banners, and more. Simply enter custom dimensions or choose preset sizes optimized for popular social media platforms.
Yes, resizing an image to smaller dimensions usually reduces its file size. ModiFyX automatically recalculates pixel data to optimize storage space while maintaining visual clarity. You can combine resizing with compression for even smaller file sizes.
Absolutely. ModiFyX allows precise control over width and height in pixels. You can maintain aspect ratio automatically or disable it for custom resizing. This makes it ideal for web developers, designers, and e-commerce platforms requiring exact dimensions.
Yes, the ModiFyX Image Resizer is completely free and works entirely online in your browser. No sign-up, no watermark, and no hidden fees. All resizing happens locally on your device for maximum privacy and speed.
Not unless you disable aspect ratio protection. By default, ModiFyX maintains your image's original proportions to prevent stretching or distortion. If needed, you can manually adjust width and height independently for creative or specific layout requirements.
Yes! Properly resized images improve website loading speed and SEO rankings. ModiFyX helps you optimize dimensions and reduce unnecessary pixel data, making your images lighter and more web-friendly without sacrificing quality.
Currently, images are resized one at a time to ensure optimal performance and privacy. However, the tool retains your previous settings, making it fast and efficient to resize multiple images sequentially.
Yes, you can enlarge images up to 4× their original size using our smart scaling technology. While extreme enlargement may introduce minor softness, ModiFyX minimizes pixelation using optimized interpolation techniques.
No. ModiFyX performs all resizing directly inside your browser using local processing technology. Your images are never uploaded, stored, or shared, ensuring complete privacy and security.
ModiFyX: Free image upscaling, format conversion, and compression tools with 100% local processing. free image editor, private image processing, browser-based image tools, offline image editing, no-upload image converter, secure image upscaler, lossless image compression, WebAssembly image processing.
