Files stay in your browser
No sign-up
No file limits
Instant — no upload

Free Image Compressor
No Upload. Instant. Private.

Compress JPG, PNG, WebP up to 90% smaller. Convert to WebP or AVIF. Resize, rotate, effects, blur, batch processing. Everything runs in your browser — files never leave your device.

JPG to WebP PNG to WebP Compress JPEG Resize image Rotate & flip Blur & censor Batch compress

Drop an image here to start

Reading RAW preview…

Compress, convert, resize, rotate, effects or blur any image

Extracting the embedded JPEG preview from your camera file — this happens entirely on your device.

JPG · PNG · WebP · AVIF · GIF · BMP · TIFF · SVG · RAW — any size
✓ No file limit✓ No upload✓ 100% private
Upload an image to start
LIVE PREVIEW
Live preview — changes apply instantly
Quality level
Quality80%
Smaller fileHigher quality
Quick presets
95%
Near-lossless
80%
Recommended
60%
Max savings
💡 At 80%: visually identical to original, 60–80% smaller file.
Output format
Compression quality 80%
Smaller fileHigher quality
Lower quality = smaller file. 80% is the sweet spot for WebP/JPG/AVIF.
Popular conversions — one click
💡 WebP is 25–40% smaller than JPG/PNG at equal quality. AVIF up to 50% smaller than JPG. SVG output wraps the result as a scalable single-file vector container — great for design tools. Select WebP above, then tap Convert Format.
RAW → JPG / PNG CR2 · NEF · ARW · DNG · RAF · RW2 · ORF

Drop a camera RAW file in the upload zone. VeloTools reads the file locally and extracts the full-resolution JPEG preview that your camera embeds inside every RAW — then you can compress, resize, or convert that preview straight to JPG, PNG, WebP, AVIF or SVG using the buttons above. Nothing is uploaded, and if no usable preview exists you'll get a clear message instead of a silent failure.

Custom dimensions (pixels)
🔗 Aspect ratio locked. Empty = keep original.
Scale %
100% = original size.
Quick resize
Rotate & Flip
Live preview — real-time adjustments
Effect presets
Manual adjustments
100
100
100
0°
0
0
Blur type
Intensity
5
💡 Privacy: Pixelate or Gaussian blur to censor sensitive data in screenshots.
Crop mode — draw a selection, or pick a preset ratio below
Aspect ratio
Draw a selection on the image above
↓ Drag handles to resize · Space+drag to move · click ✔ Apply Crop to confirm
Processing image…
Happening in your browser — 100% private
Done! Processed successfully
.webp
Edit filename before downloading — extension is set automatically.
Continue editing the result
100% in-browser · No uploads · Free forever

Compress images online
without uploading a single file.

Compress and convert JPG, PNG, WebP, and AVIF up to 90% smaller — without a single byte ever leaving your device. Professional-grade results, instant processing, and complete privacy, all running locally inside your browser.

Free image tools — compress, convert, resize in one place

Everything you'd expect from desktop software — format conversion, batch processing, precision cropping — with nothing to install and nothing to upload.

Compress JPG & PNG free online

Reduce JPG and PNG file sizes up to 90% with adjustable quality. Choose 80% for the ideal balance — visually identical, dramatically smaller. Per-format quality control included.

Batch compress 15 images at once — free

Drop up to 15 images at once and compress them all in parallel. Download the whole set as a single ZIP — a feature that's usually paid elsewhere. No daily limit, no account required.

Resize & crop images without quality loss

Resize to exact pixel dimensions with aspect ratio lock. Crop with a rule-of-thirds guide and live pixel readout. Zoom with a magnifier for precision — all pixel-perfect, lossless.

Blur, censor & apply effects privately

Gaussian blur for backgrounds, pixelate to censor faces and sensitive data. 8 effect presets plus manual brightness, contrast, saturation — processed entirely on your device.

Convert camera RAW (CR2, NEF, ARW, DNG) to JPG & PNG

Drop a RAW file straight from your camera. VeloTools extracts the full-resolution JPEG preview your camera embeds in every CR2, CR3, NEF, ARW, DNG, RAF, RW2, ORF and PEF file, then lets you compress, resize or convert it like any image — entirely on your device.

Convert SVG to PNG, or PNG to SVG

Render vector SVG icons and logos to crisp PNG, JPG or WebP at any resolution. Or wrap a PNG/JPG as a single-file scalable SVG container — lossless, portable, and ready for Figma, Illustrator or the web.

Your images never leave your device — ever.

Most online compressors work by uploading your image to a remote server, processing it there, and sending it back. That means your private photos briefly live on someone else's hardware — and you simply have to trust they're deleted.

VeloTools takes a fundamentally different approach. The entire engine runs as JavaScript in your browser using the HTML5 Canvas API. When you drop an image, it's decoded, re-compressed, and re-encoded entirely in your device's memory. Nothing is uploaded, nothing is logged, and no server ever sees your file.

The result is the rare combination of speed, privacy, and zero cost — no upload wait, no data exposure, no subscription. You can even disconnect from the internet once the page has loaded and keep working.

🔒 Local only
⚡ Canvas API
🚫 No upload
Your device

RAW & SVG conversion, done properly

Camera RAW files (.CR2, .CR3, .NEF, .ARW, .DNG, .RAF, .RW2, .ORF, .PEF) are TIFF-based containers. Buried inside every one of them — alongside the unprocessed sensor data — is a full-resolution JPEG preview that the camera itself generated for the rear LCD screen. VeloTools' RAW decoder walks the file's IFD/SubIFD structure in pure JavaScript, locates that embedded preview, inspects its JPEG header to confirm it's a standard baseline or progressive image (not the lossless sensor data, which browsers can't render), and loads it straight into the editor.

From there, the RAW preview behaves exactly like any uploaded photo: compress it, resize it, rotate it, or convert it to JPG, PNG, WebP, AVIF — even SVG. Batch mode supports RAW too, so a folder of 15 CR2 or NEF files can be converted to JPG or PNG in one pass, with each thumbnail decoded and shown before you hit Process.

SVG conversion works both directions. SVG → PNG/JPG/WebP rasterizes your vector file at its native size via the Canvas API — perfect for using a logo or icon anywhere SVG isn't supported. PNG/JPG → SVG wraps your image inside a single-file SVG container (the picture embedded as base64), which stays pixel-perfect and opens correctly in browsers, Figma, and Illustrator as a portable vector-compatible asset.

Every step — TIFF parsing, JPEG validation, rasterization, re-encoding — happens locally via WebAssembly-grade browser APIs. No RAW file, preview, or SVG ever touches a server.

📷 CR2 · NEF · ARW · DNG
🧩 SVG ⇄ PNG
⚙️ Pure JS, no upload
RAW → JPG/PNG

Convert PNG to WebP and AVIF — next-gen formats compared

The same photo, encoded three ways. Newer formats pack far more quality into far fewer bytes — which means faster pages, better Core Web Vitals, and lower bandwidth bills.

JPEGUniversal
Baseline size100%

Works everywhere. The safe default for photographs, but the least efficient of the three. No transparency support.

WebPBest for web
Typical size~32% smaller

Google's modern format. 25–40% smaller than JPEG at equal quality, with full alpha transparency. Supported in every modern browser.

AVIFSmallest
Typical size~52% smaller

The newest standard. Up to 50% smaller than JPEG with HDR support and transparency. Ideal when every kilobyte counts.

PNG is always lossless — to shrink a PNG, convert it to WebP or AVIF and keep full transparency. For lossy formats (JPG, WebP, AVIF) 80% quality is the sweet spot: dramatically smaller yet visually identical.

How to compress images online — 4 steps

From original file to optimised in under a minute. No installation, no account, no upload required.

01

Drop or choose your image

Drag and drop a JPG, PNG, WebP, AVIF, or GIF onto the tool, or click to browse. Single image or batch up to 15 — no file size limit.

02

Set quality & format

Choose 80% quality for photos. Switch output to WebP to gain an extra 30% reduction over JPEG at the same visual quality. Live preview updates instantly.

03

Click Compress

Your image processes locally in under a second via the Canvas API. Before/after comparison and exact savings percentage appear immediately.

04

Download — renamed, ready to use

Click Download. In Batch mode, download all compressed images as a single ZIP archive. No waiting, no queue, no server.

Compress JPG PNG to WebP JPG to WebP Resize image Blur & censor Batch compress RAW to JPG/PNG SVG to PNG About VeloTools Invoice Generator PDF Compressor Background Remover
⚡ Help center

Frequently asked questions

Everything about compressing, converting and editing JPG, PNG, WebP, AVIF, GIF, SVG and camera RAW files directly in your browser — privacy, speed, formats, batch processing and image quality, answered.

PNG uses lossless compression — quality settings have no effect because PNG always produces mathematically lossless output. Use Convert → WebP (25–35% smaller, full transparency preserved) or AVIF to reduce PNG file size.
No. All processing happens locally in your browser via JavaScript and the Canvas API. Files never leave your device. VeloTools has no server for image processing. The tool works offline once loaded.
Use Convert → WebP at 80% quality. Resize to exact display dimensions. This typically reduces file sizes by 70–85% and directly improves Core Web Vitals and Google PageSpeed scores. For bulk website optimization, use Batch mode.
No file size limit. The only constraint is your device's available memory. For files above 100MB, Chrome or Edge performs best. Batch mode supports up to 15 images simultaneously.
No. WebP and AVIF both fully support alpha transparency. Transparent PNG areas are preserved exactly in the output. Converting to JPEG replaces transparency with white, as JPEG does not support transparency.
Switch to Batch mode, upload up to 15 images, choose quality and output format, then click Process. All images are processed in parallel (up to 4 at once) with individual progress indicators. Download them individually or as a ZIP archive.
When you adjust the quality slider, change effects settings, or switch rotation, the preview image updates automatically using Canvas rendering. You see the result in real time without clicking any button.
Yes. Switch to Batch mode and drop up to 15 images at once — they all compress in parallel and you download them together as a ZIP. There is no charge, no account, and no daily limit. Bulk compression is usually a paid feature elsewhere, but here it is completely free.
Because nothing is uploaded. The entire compressor runs as JavaScript inside your browser, so your image is processed on your own device the instant you choose settings. There is no upload, no server queue, and no download step — which is why even large photos feel instant.
Yes — this is one of the safest ways to do it. Your files never leave your computer and are never sent to any server, so screenshots, scanned documents, IDs, or confidential client images stay fully private. You can even disconnect from the internet after the page loads and it will still work.
No. Crop and rotate are pixel-perfect operations — they re-map the original pixels without re-compressing, so there is no quality loss from those steps. Any compression only happens when you choose a lossy output format like JPG, WebP, or AVIF, and you control exactly how much with the quality slider.
Yes. Every camera RAW file (CR2, CR3, NEF, ARW, DNG, RAF, RW2, ORF, PEF) embeds a full-resolution JPEG preview generated in-camera. VeloTools reads the RAW file locally, extracts that embedded preview, and loads it into the editor — from there you can compress, resize, or convert it to JPG, PNG, WebP, AVIF or SVG using the same tools as any other image. If a file has no usable embedded preview, you'll see a clear message instead of a silent failure. Nothing is ever uploaded to a server.
Yes. SVG → PNG/JPG/WebP renders your vector file to a raster image at its native size using the Canvas API — ideal for using logos and icons where SVG isn't supported. PNG/JPG → SVG wraps your image as a single-file scalable SVG container with the picture embedded inside, so it stays lossless and opens correctly in browsers and design tools like Figma or Illustrator.
JPG is best for photos where small file size matters more than perfect edges. PNG is best for screenshots, logos, and anything needing transparency or sharp text, but it's lossless so files stay larger. WebP gives JPG-like quality at 25–35% smaller size with full transparency support — the safest modern default for websites. AVIF compresses even further (up to 50% smaller than JPG) but encodes slightly slower and has marginally less universal support in older software. For most web use, convert to WebP; for maximum compression on supported platforms, choose AVIF.

Start compressing now

No sign-up, no upload, no limits. Just drop your images and watch them shrink — privately, instantly, and free forever.