Image Converter
Convert images between different formats, resize, and compress. Support for JPG, PNG, WebP, and GIF.
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Complete Image Format Guide
Everything you need to know about image formats, compression, and when to use each one — from web performance to professional photography.
Understanding Image Formats
Image Format Types
- ✓Raster images: made of pixels — resolution-dependent
- ✓JPG, PNG, WebP, GIF, BMP, TIFF are all raster formats
- ✓Vector images: made of mathematical paths — infinitely scalable
- ✓SVG is the only web vector format
- ✓Lossy compression: JPG, WebP (lossy mode) — some quality data permanently removed on save
- ✓Lossless compression: PNG, WebP (lossless mode), TIFF — all pixel data preserved
- ✓Transparency support: PNG (8-bit alpha), WebP (alpha), GIF (1-bit), SVG (via opacity) — not JPG
- ✓Color depth: 1-bit (black/white), 8-bit (256 colors), 16-bit (65,536), 24-bit (16.7M/sRGB), 32-bit (with alpha)
- ✓Animation support: GIF (8-bit, 256 colors per frame), WebP animated, APNG, CSS/SVG animations
- ✓Bit depth: higher = more color gradations = larger file
When to Use Each Format
- ✓JPG: photos, complex gradients, no transparency needed — 10–30× smaller than PNG; quality 80–90% is the sweet spot
- ✓PNG: logos, screenshots, graphics with text, transparency required — lossless, large files
- ✓WebP: the modern default for web — 25–35% smaller than JPG, 26% smaller than PNG, supports transparency and animation
- ✓AVIF: next-gen, 50% smaller than JPG — browser support excellent (Chrome, Firefox, Safari 16+)
- ✓GIF: small animations with simple colors — replaced by WebP and CSS animations for most uses
- ✓SVG: logos, icons, charts, illustrations — scales to any size, tiny file, easily styled with CSS
- ✓TIFF: professional photography and print prepress — large files, preserves all data
- ✓BMP: Windows native — uncompressed, very large — avoid for web
- ✓HEIC: Apple photo format — iPhone default; must convert for sharing on non-Apple devices
Format Reference & Compression
Format Conversion Reference
- •JPG → PNG: lossless storage; larger file size; adds transparency support
- •JPG → WebP: 25–35% smaller; same quality; add transparency if needed
- •PNG → JPG: removes transparency (fills with white); significantly smaller file
- •PNG → WebP: 26% smaller; retains transparency; ideal for web
- •GIF → WebP: replaces animation; much better quality and smaller file
- •HEIC → JPG: required for cross-platform sharing from iPhone photos
- •any → SVG: only works for simple graphics via auto-trace; photos cannot be meaningfully converted to SVG
- •TIFF → JPG/PNG: for sharing print files digitally
- •WebP → JPG: for compatibility with older systems that don't support WebP
Compression & Quality Settings
- •JPG quality 50%: file ~20% of original — visible blocking artifacts
- •JPG quality 75%: file ~35% — noticeable compression on close inspection
- •JPG quality 80%: file ~40% — sweet spot for most web use
- •JPG quality 85%: file ~50% — good for large hero images
- •JPG quality 90%: file ~60% — high quality, moderate savings
- •JPG quality 95%: file ~75% — near original; diminishing returns
- •JPG quality 100%: file ~90% — no visible loss but large file
- •WebP lossless: similar quality to PNG, ~26% smaller
- •WebP lossy quality 80: ~similar to JPG 85, smaller file
File Size Reference (1920×1080 photo)
- •TIFF uncompressed: ~6 MB
- •PNG lossless: ~2–4 MB
- •JPG quality 95%: ~1.2 MB
- •JPG quality 85%: ~500–800 KB
- •JPG quality 75%: ~250–400 KB
- •WebP lossless: ~1.5–3 MB
- •WebP quality 80: ~150–300 KB
- •AVIF quality 80: ~80–150 KB (next-gen)
- •GIF (limited to 256 colors): ~2–5 MB
- •WebP animated: similar to GIF content, 70% smaller
Real-World Applications
Web Performance
- →Convert all JPG/PNG images to WebP for 25–35% bandwidth savings
- →Use AVIF for hero images and LCP elements — largest gains on mobile connections
- →Convert product photos from 5MB JPG to 200KB WebP while maintaining visual quality
- →Replace animated GIFs with WebP animated for 70%+ file size reduction
- →Convert high-res photography from TIFF to WebP for CDN delivery
- →Optimize email images by converting PNG logos to JPG
- →Compress and resize feature images for blog posts before upload
- →Generate multiple format variants (WebP + JPG fallback) for <picture> srcset
Print & Professional Photography
- →Convert HEIC (iPhone) to JPG for sharing with non-Apple users and printers
- →Convert camera RAW exports from TIFF to JPG for client delivery
- →Prepare images for print (convert to CMYK TIFF for offset printing)
- →Convert PNG screenshots to JPG for smaller email attachments
- →Batch-convert stock photos from various formats to a consistent format
- →Convert social media graphics from PSD exports to optimized PNG
- →Prepare magazine images by converting WebP back to TIFF for print workflow
- →Convert GIF product photos to static JPG for e-commerce platforms that don't support GIF
App & Mobile Development
- →Convert app icons from PNG to format required by each platform (iOS: PNG, Android: WebP)
- →Generate multiple resolutions (@1x, @2x, @3x) from source image
- →Convert splash screens between formats for different build targets
- →Prepare App Store screenshots in required PNG format
- →Convert Google Play banner from JPG to WebP for Store listing
- →Generate notification icons in PNG (Android requires specific format)
- →Convert marketing assets from HEIC to PNG for design tools
- →Prepare watchOS and widgets images in PNG format
Document & Archival
- →Convert screenshots from PNG to JPG for reducing email/Slack attachment size
- →Convert scanned documents from TIFF to PDF-ready format
- →Prepare images for Word/PowerPoint by converting to JPG (smaller, better compat.)
- →Convert scientific imaging (TIFF) to JPG for publication submission
- →Archive document scans as lossless PNG rather than lossy JPG
- →Convert infographics from JPG to PNG to preserve text sharpness
- →Prepare legal document exhibits by converting photos to PDF-compatible JPG
- →Convert handwritten notes photos (HEIC/HEIF) to JPG for cross-platform sharing
Best Practices
Choosing Quality Settings
- ✓Start with the highest quality source file — conversion only degrades; you can't add back what wasn't there
- ✓For photos on the web: JPG or WebP at 80–85% quality — invisible loss, significant size reduction
- ✓For product images (e-commerce): JPG 85% or WebP 85% — balance quality with page speed
- ✓For logos and icons with transparency: PNG or WebP lossless — never JPG
- ✓For hero/banner images: WebP at 80%, or AVIF at 65% equivalent — maximum performance
- ✓Avoid re-compressing JPGs — each save at < 100% quality degrades the file
- ✓When in doubt, use WebP — it's the best modern format for almost all web use cases
- ✓Test your converted image at actual display size — zooming reveals compression that's invisible at normal viewing
File Size Optimization
- ✓Resize before converting — a 4000×3000 image displayed at 400×300 wastes 100× the bandwidth
- ✓Use width/height attributes in HTML — tells the browser the size before the image loads
- ✓Lazy load images below the fold — only load images when they scroll into view
- ✓Serve responsive images with <picture> and srcset — different sizes for different screen widths
- ✓Compress before uploading to CMS — WordPress, Shopify, and other platforms re-compress on upload
- ✓For social media thumbnails, export at exactly the required dimensions (Facebook: 1200×630, Twitter: 1200×600)
- ✓Batch convert entire image libraries with consistent settings for uniformity
- ✓Monitor Core Web Vitals — Largest Contentful Paint (LCP) is directly affected by image performance
Conversion Examples by Category
E-Commerce Optimization
- •Product photo (4MB TIFF) → WebP 80% → 180KB — 95.5% size reduction
- •Background-removed PNG (2.1MB) → WebP lossless → 1.4MB — 33% smaller, transparency kept
- •Category banner (800KB JPG) → WebP → 550KB — 31% smaller
- •Animated product demo GIF (3MB) → WebP animated → 800KB — 73% smaller
- •Hero image (1.2MB JPG) → AVIF → 280KB — 77% smaller, next-gen format
- •Thumbnail (150KB PNG) → JPG 80% → 18KB — 88% smaller (no transparency needed)
Photography Workflow
- •iPhone HEIC photo → JPG for Lightroom import and printing
- •DSLR RAW (processed) → TIFF → JPG 92% for client delivery
- •High-res TIFF → WebP for website portfolio gallery
- •50MB landscape TIFF → JPG 85% → 4MB for email sharing
- •Family portrait PNG → JPG for smaller online album upload
- •Product photography JPG → PNG to add white background removal
- •Screenshot PNG → JPG for compressed presentation embed
- •Scanned artwork TIFF → PNG lossless to preserve all detail digitally
Web Development Use Cases
- •Blog post image: PNG mockup → WebP → 60% smaller, same visual quality
- •Open Graph image (OG): designed as PNG → converted to JPG 90% → 60KB for social sharing
- •Favicon: SVG source → PNG at 32×32 and 192×192 for browser and PWA
- •CSS background: photo → WebP 75% for subtle texture (< 50KB)
- •Icon sprite: individual SVGs → combined SVG sprite → no conversion needed
- •App screenshot: PNG → AVIF → 70% smaller for App Store listing
- •CDN asset: original JPG → WebP + AVIF variants → 40% bandwidth savings
- •Newsletter image: large PNG → JPG 80% → under 100KB for email clients
Frequently Asked Questions
Which image format should I use for my website?▾
WebP is the best choice for almost all web images — it's 25–35% smaller than JPG for photos and 26% smaller than PNG for graphics with transparency, and it's supported in all modern browsers. For next-level compression (especially on mobile), AVIF is 50% smaller than JPG — supported in Chrome, Firefox, and Safari 16+. Offer both with a <picture> element for maximum compatibility. Use PNG only when you need transparency and must support very old browsers.
Does converting to JPG lose quality?▾
JPG uses lossy compression, so converting from a lossless format (PNG, WebP lossless, TIFF) to JPG always discards some quality. The amount depends on the quality setting — 80–85% is a sweet spot where the loss is visually imperceptible for most photos. The bigger danger is re-compressing an already-compressed JPG: each re-save at less than 100% quality degrades it further. Always work from your highest-quality source.
Can I convert a photo to SVG?▾
You can trace a photo into SVG using auto-trace tools (like Inkscape or Vector Magic), but the result is an artistic rendering, not a faithful representation of the photo. SVG is designed for geometric shapes, illustrations, and icons — not photographic content. If you want a scalable photo, use a very high-quality JPG or WebP and let the browser scale it with CSS.
What is HEIC and why do I need to convert it?▾
HEIC (High Efficiency Image Container) is Apple's photo format used on iPhones since iOS 11. It produces excellent quality at half the file size of JPG — but Windows, Android, and most web platforms don't support it natively. Convert HEIC to JPG for universal compatibility. On iPhone, you can change Settings → Camera → Formats → Most Compatible to always shoot in JPG instead.
How much quality do I lose converting from PNG to JPG?▾
For photos, the visual loss at JPG quality 80–90% is typically undetectable in normal viewing conditions. For graphics with sharp edges, solid colors, or text (like logos, screenshots, and infographics), JPG compression creates visible 'blocking' artifacts around edges. Rule of thumb: photos → JPG/WebP; graphics with text/logos → PNG or WebP lossless; transparent elements → PNG or WebP.
Is my image processed on your server?▾
No. All image conversion happens in your browser using JavaScript Canvas API and the FileReader API — no image data is uploaded to any server. Your photos never leave your device. This makes the tool safe for converting confidential documents, personal photos, or proprietary assets. You can verify this in your browser's DevTools Network tab — no upload requests will appear.