JR LocalLab
Processed on your device

Free Image Converter

Yes. You can convert between JPG, PNG, WebP, GIF, BMP, ICO, and PDF image formats in your browser without uploading your files. Using client-side canvas APIs, your images are converted locally with full privacy.

Browse files or drag & drop

Files never leave your browser. Zero cloud uploads.

Supports JPG, PNG, WebP, GIF, BMP, AVIF, or SVG

Your files are processed in your browser and are not uploaded by our code. You can confirm this in your browser's Network tab. Third-party ad scripts load on the page, outside the tool area, and are not given your files.

How does it work locally?

1

Drop Files or Batch

Select up to 20 images at once. Magic bytes are inspected to verify genuine file formats.

2

Select Target Format

Choose between WebP, PNG, JPG, BMP, ICO, or PDF, and adjust quality and dimension settings.

3

Download Output or ZIP

Download individual converted files or grab the entire batch in a single consolidated ZIP archive.

Tips for Best Results

  • Enable Strip EXIF metadata to protect your privacy by removing GPS locations and camera details.
  • When converting transparent images to JPG, select a background color to fill transparent areas cleanly.
  • Choose WebP for website assets to achieve 25% to 35% smaller file sizes at identical visual quality.
  • Converting multiple images into PDF creates a clean multi-page document with one image per page.

Format Comparison

FormatCompression TypeAlpha TransparencyTypical Use Case
WebPLossy & LosslessYes (Full 8-bit)Modern websites, responsive apps
PNGLossless (DEFLATE)Yes (Full 8-bit)Logos, icons, screenshots, editing masters
JPGLossy (DCT)No (Solid fill)Photographs and universal compatibility
BMPUncompressed 24-bitNoLegacy Windows software and raw graphics
ICOMulti-resolution PNGYesBrowser favicons and desktop application icons
PDFVector Document ContainerPage marginsPrintable sheets and multi-image documents

Limits and Technical Specifications

  • Maximum image file size: 40 MB per file.
  • Maximum image resolution: 50 megapixels.
  • Maximum batch conversion: 20 files per run.

Frequently Asked Questions

Which image formats can I convert?

Supported inputs include JPG, PNG, WebP, GIF, BMP, AVIF, and SVG. Supported outputs include WebP, PNG, JPG, BMP, ICO, and PDF.

Does converting flatten transparency?

When converting transparent PNGs or WebPs to JPG, transparent areas are cleanly flattened onto your chosen background color.

Can I convert multiple images at once?

Yes. You can select up to 20 files in a single batch and download all converted files packaged in a single ZIP archive.

What does the strip metadata option do?

It removes embedded EXIF camera settings, timestamps, and GPS coordinates for privacy and smaller file sizes.

Are files sent over the internet?

No. Conversion is handled purely by your browser canvas engine without network transmission.

Related In-Browser Tools

JPG to PNG Converter

Dedicated tool to convert JPG to lossless PNG.

Open Tool →

PNG to JPG Converter

Compress large PNGs into lightweight JPGs.

Open Tool →

Image Compressor

Compress images to a specific target KB size.

Open Tool →

Suggested Tools & Resources

Independent Recommendations

TinyPNG

Freemium

Smart lossy compression service for WebP, PNG, and JPEG files to reduce page weights.

Best for: Server-side image quantization and web asset weight reduction
Visit Official Site →

CleanPNG

Free

Community directory of transparent PNG clipart and cutout elements for graphic design.

Best for: Finding isolated cutout objects and decorative illustration elements
Visit Official Site →

Vectorizer.AI

Paid

Cloud-based vectorization service converting bitmaps into SVG and EPS vector curves.

Best for: Detailed server-side vectorization of complex color illustrations
Visit Official Site →
Also on JR LocalLab:
Image CompressorImage ResizerJPG vs PNG vs WebP