Image Converter & EXIF Stripper
Convert PNG, JPG, WebP images, crop dimensions, and strip 100% of sensitive GPS camera EXIF metadata.
Drag & Drop image to convert & clean EXIF
Supports PNG, JPEG, WebP, BMP up to 50MB. 100% Private.
How do I use Image Converter & EXIF Stripper?
Drag and drop your PNG, JPEG, WebP, or BMP image (up to 50MB) into the local upload zone.
Inspect any embedded EXIF metadata detected by ExifReader, including camera model, capture timestamp, and hidden GPS coordinates.
Select your target output format (WebP, JPEG, or PNG), set the compression quality slider (20%–100%), and optionally apply 1:1, 16:9, or 4:3 cropping or 90° rotation.
Click 'Convert & Strip EXIF' to re-encode clean pixels onto an HTML5 Canvas and download the sanitized image immediately.
What features does Image Converter & EXIF Stripper offer?
Bidirectional format conversion across WebP, PNG, and JPEG via native HTML5 Canvas API
Automatic 100% EXIF, IPTC, XMP, and GPS coordinate stripping during pixel re-encoding
Built-in ExifReader binary header inspector revealing hidden camera and location tags
Precision center-crop presets (1:1 Square, 16:9 Landscape, 4:3 Standard) plus 90° rotation and horizontal flip
Adjustable encoding quality factor (0.20 to 1.00) with real-time file size comparison
100% Client-Side privacy — personal photos never leave your device or touch any cloud server
How do WebP, PNG, and JPEG formats compare in compression and browser support?
Choosing the right raster image container directly impacts Largest Contentful Paint (LCP), bandwidth costs, and alpha-channel transparency. When converting via the browser's HTML5 Canvas API (`HTMLCanvasElement.toBlob`), raw RGBA pixel buffers are re-encoded from scratch—automatically discarding binary APP1 EXIF metadata segments.
ctx.drawImage(img, cropX, cropY, cropW, cropH) → canvas.toBlob(callback, 'image/webp', quality)Reads only decoded visual RGB/RGBA pixel values from the source image and serializes a brand-new container free of APP1/EXIF headers.
RAM Bytes = Width (px) × Height (px) × 4 Channels (R, G, B, A)A 4000×3000 (12MP) photo occupies ~48 MB of uncompressed browser Canvas memory during conversion regardless of compressed disk size.
| Image Format | Compression Algorithm | Alpha Transparency | Typical Size vs. PNG | Best Production Use Case |
|---|---|---|---|---|
| WebP (image/webp) | VP8 Lossy & LZ77 Lossless predictive coding | Yes (8-bit alpha channel) | 26% – 70% smaller | Modern web UI assets, e-commerce product cards, hero banners |
| JPEG (image/jpeg) | Discrete Cosine Transform (DCT) 8×8 lossy blocks | No (Opaque RGB only) | 60% – 85% smaller than photographic PNG | High-detail digital photography without transparent backgrounds |
| PNG (image/png) | DEFLATE lossless LZW-style compression | Yes (Full 8-bit / 16-bit RGBA) | Baseline (100%) | Sharp UI screenshots, vector logos, diagrams, archival masters |
- Converting a transparent PNG to JPEG replaces transparent pixels with a solid black/opaque canvas background because the JPEG specification does not support an alpha channel. Choose WebP or PNG to preserve transparency.
How is Image Converter & EXIF Stripper used in real-world workflows?
Converting Hero PNGs to WebP for Core Web Vitals LCP
Replace multi-megabyte PNG marketing graphics with 85%-quality WebP files to cut image payload weight by 60%+ and pass Google Lighthouse 'Serve images in next-gen formats' audits.
Sanitizing Smartphone GPS EXIF Tags Before Publishing
iPhones and Android cameras embed exact GPS latitude/longitude coordinates, altitude, and timestamp tags inside JPEG headers. Inspect and strip 100% of hidden EXIF data before uploading photos to public forums or classified listings.
Standardizing Product Thumbnails to 1:1 or 16:9 Aspect Ratios
Center-crop raw camera shots into uniform 1:1 square catalog thumbnails or 16:9 blog headers while simultaneously converting to WebP in a single browser step.
Frequently Asked Questions about Image Converter & EXIF Stripper
How does converting an image in the browser strip 100% of EXIF metadata?
Image files consist of visual pixel data plus header segments (such as JPEG APP1 markers) where EXIF, GPS, and camera serial numbers live. When JoyTools draws your image onto an HTML5 `<canvas>` element and exports it via `canvas.toBlob()`, the browser reads only the raw RGB/RGBA pixel matrix and encodes a fresh file container—leaving 100% of original EXIF headers behind.
Does converting PNG to WebP preserve transparent backgrounds?
Yes. Unlike JPEG, the WebP format natively supports a full 8-bit alpha transparency channel even in lossy compression mode. Your transparent logos, product cutouts, and UI icons remain transparent at a fraction of the original PNG file size.
What quality setting should I use when converting photos to WebP or JPEG?
A quality factor between 80% and 85% (0.80–0.85) is the industry sweet spot for web publishing. It eliminates 60%–75% of redundant high-frequency chroma data with virtually zero perceptible visual degradation on Retina/HiDPI displays.
Why does my file size increase if I convert a JPEG into a PNG?
JPEG uses lossy frequency-domain compression tailored for continuous-tone photographs, whereas PNG uses lossless DEFLATE compression designed for sharp edges and flat colors. Re-encoding a noisy photographic JPEG into lossless PNG forces the encoder to store every JPEG compression artifact losslessly, inflating file size.
Are my private photos ever uploaded to a cloud server during conversion?
No. Both the ExifReader metadata inspection and the HTML5 Canvas format conversion run strictly inside your local browser tab. You can disconnect from Wi-Fi after loading the page and convert images completely offline.
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