Image Converter

Mobile image toolkit. Convert between JPG, JPEG, PNG, WebP, BMP and TIFF; compress, crop, rotate, resize, stitch photos into long screenshots or grids. All processed locally on your device, files never leave your phone.

Download on App Store

Image Converter is a complete mobile image toolkit for anyone who needs to rework a photo on their phone without uploading it anywhere. It converts between JPG, JPEG, PNG, WebP, BMP and TIFF, with batch support so a folder of HEIC exports can become a folder of web-ready JPGs in one pass. Beyond format conversion, the app includes a compressor that reduces file size at a chosen quality, a resizer that scales by pixel or by longest edge, a cropper with aspect-ratio presets for social posts, a rotation tool that handles both single images and bulk batches, and a stitch tool that joins several photos into a long screenshot or a grid. Every tool runs locally: the image data never leaves the phone, the new file is written straight back to your library, and there is no account to create. The interface is available in fourteen languages, the core conversion tools are free, and a small Pro subscription removes ads and unlocks the largest batch sizes. Image Converter is built for the moments when you need the photo to be a different shape, a different format, or a different size — and you need it now, on the phone in your hand.

Features

  • Format Conversion: Convert freely between JPG, JPEG, PNG, WebP, BMP and TIFF. Just tap a format chip to pick the target — the conversion runs locally on your device and preserves the original resolution, so output quality stays identical to the source.
  • Smart Compression: Drag the quality slider from 1 to 99, or pick from nine preset chips (10/20/30/40/50/60/70/80/90) to match your use case. The original and compressed file sizes are shown side by side so you can see the savings before you save.
  • Rotate and Flip: Rotate a single image left or right in 90° steps, or flip it horizontally or vertically with a single tap. EXIF orientation is detected and corrected automatically before export, so the file opens the right way up everywhere.
  • Free Crop: Use the built-in crop tool to trim away unwanted edges, lock to a fixed ratio like 1:1, 4:3 or 16:9, or freely drag the frame to keep exactly the part of the image you want.
  • Resize: Scale an image up or down to a target width and height in pixels. Choose from preset resolutions for common use cases or enter custom dimensions — and toggle aspect-ratio lock to prevent distortion.
  • Photo Stitching: Combine up to 20 photos into a single image. Pick vertical mode for long chat screenshots, horizontal mode for side-by-side comparisons, or a 3×3 grid for a gallery layout — then drag to reorder before exporting.

Rating: 4.7 (New)

Downloads: 1,000+

Frequently Asked Questions

Which image formats can I convert between?
You can convert freely between JPG, JPEG, PNG, WebP, BMP and TIFF — six formats in total. HEIC photos from the iPhone camera roll are recognized on import, but the export target is still limited to those six formats.
How do I pick the right compression quality?
Use the 1–99 quality slider, or tap one of the nine preset chips (10/20/30/40/50/60/70/80/90) for a quick pick. For everyday sharing and on-screen viewing, 60–80 is usually the sweet spot; go to 90 or above for archival copies or prints where you want to preserve every detail.
Why does my exported photo come out rotated sideways?
Many phones store the orientation as a flag in the photo's metadata instead of actually rotating the pixels. This app reads the EXIF orientation tag and rotates the pixels for you before export, so the saved file opens in the correct orientation in any viewer, on any platform.
Can I stitch a long chat screenshot?
Yes — choose Vertical mode, add up to 20 screenshots, drag them into the right reading order, then export. The result is a single tall image sized to fit most sharing platforms and chat apps.
Does the app upload any of my files to a server?
No. Format conversion, compression, rotation, cropping, resizing and stitching all run on your phone. Your files never leave the device, and your conversion history is stored only in a local database on your phone.