Image Tool+ · macOS · Powerful · 100% offline
Powerful · Simple · Private
Next-gen formats, blazing fast, 100% offline. Convert, resize, compress, watermark, remove backgrounds, and rename — all of your image work, completed by a single drag-and-drop. A Mac-only app.
Drop images,
that's all.
Bulk in, bulk out
Runs entirely
on your Mac
No upload · No account
Every modern
format
WebP · AVIF · JPEG XL · HEIC
Rich toolkit
Presets · Convert · Resize · Watermark · Edit EXIF
macOS 11+ · Apple Silicon native · 100% local processing
Three steps, done
Drop your images
Drag a stack of files (or a whole folder) from Finder.
Pick output format
WebP, AVIF, PNG, JPG, and more. Set resize, watermark, and rename in one go.
Hit Start
Done in seconds on Apple Silicon — even hundreds of images at once.
Feature highlights
ENCODE · RESIZE · STRIP · OUTPUT
Every control, tuned to your workflow
WebP, AVIF, JPEG XL, HEIC, PNG, JPG and more — all switchable in one screen. Get fine-grained control over quality, dimensions, color profile, and metadata, per file.
Before/after file size is shown right in the UI, so you can see exactly how much lightereach setting makes the output, while you tune it.
Encode
- WebP75
- AVIF55
- JPEG XL80
- HEIC75
- JPG75
- PNG—
Resize
Max 1920pxStrip metadata
EXIF · GPS · camera- GPS35°41'22"N · 139°41'30"E
- CameraCanon EOS R5 · RF 50mm F1.2 L
- Date taken2024:08:14 18:22:07
- ICC profileDisplay P3 · kept
Output
4032 × 3024SIDE-BY-SIDE · PIXEL LEVEL
Slide to compare, see the difference
Drag the center divider and inspect original vs converted output at the pixel level. Decide on quality before you commit to the file, not after.
"Bump quality a bit." "Actually we can compress harder than I thought." Those calls become eye-level decisions, not number guesses.
REC.2100 · HLG · PQ · CICP · GAIN MAP
It understands HDR — color preserved.
Most converters quietly drop HDR and color profile information (Display P3 / Rec. 2020) during conversion. The vivid tones and tonal range from your iPhone 12+ shots collapse into dull sRGB.
Image Tool+ reads and preserves transfer curves, peak luminance, CICP, and gain maps, writing them out at each format's full expressive range — 10-bit YUV 4:4:4 / 4:2:0 and more. Non-negotiable for professional photographers, video creators, and print designers.
VISIONKIT · ON-DEVICE
Detect any subject, remove the background
Powered by Apple's VisionKit, subjects are detected with high precision and the background is cleanly removed with a single click. No external AI service — your Mac's Neural Engine handles it locally and instantly.
Perfect for profile shots, product photos, and social-media eye-catches. (Requires macOS 14 Sonoma or later)
POSITION · SIZE · OPACITY · OFFSET
Watermarks, baked right in.
Burn in logos or text into your output, in batch. Position, size, opacity, and offset are all fine-grained, and watermarking works on still images and animated GIF/APNG/WebP alike.
Theft prevention, brand consistency, photo books — every image in the batch gets the same treatment, automatically.
Watermark
● On
- PositionBottom right
- Size32%
- Offset X / Y20 / 20 px
- Opacity55
EXIF · IPTC · XMP · GPS
Metadata, your way.
Edit Copyright, Artist, Date taken, GPS — across hundreds of images at once. Stamp credits on a delivery batch. Strip GPS before posting to social. Run it in passing.
EXIF, IPTC, XMP, and GPS blocks are all handled in one place, and HDR metadata stays intact while you edit.
One more nice touch
AVIF QuickLook plugin included
Out of the box, macOS has limited Finder thumbnail and QuickLook support for AVIF. Image Tool+ ships with a QuickLook plugin, so you can preview AVIF files instantly with the spacebar.
macOS 11+ · Apple Silicon native · 100% local processing
How it compares
| What you need | Image Tool+ | Online converter | Preview.app | Photoshop / Pixelmator |
|---|---|---|---|---|
| Images stay local | ✅ 100% local | ❌ Server upload | ✅ | ✅ |
| Batch processing | ✅ Hundreds at once | △ Daily limits | ❌ One at a time | △ Action / script needed |
| WebP / AVIF / JPEG XL output | ✅ | △ Service-dependent | ❌ | △ Plugin needed |
| HDR / wide gamut preserved | ✅ | ❌ | △ | ✅ |
| Background removal, watermark, rename together | ✅ | ❌ | ❌ | △ Manual steps |
| Price | ¥1,300 one-time | Free / metered | Bundled with macOS | Subscription |
Supported formats
| Direction | Formats |
|---|---|
| Read | HEIC, PNG, APNG, JPG, GIF, TIFF, DNG, EPS, PSD, BMP, JBIG, PNM, PGM, PBM, MAG, PDF |
| Write | WebP, AVIF, JPEG XL, PNG, APNG, JPG, GIF, HEIC, TIFF, BMP |
Who is it for
- Bloggers & web producers — bulk WebP-ify, resize, and watermark article images.
- E-commerce operators — standardize product shots and burn in your logo automatically.
- Photographers & designers — convert to client-friendly formats while preserving HDR and gamut.
- Social media creators — mass-produce eye-catching visuals with background removal and rename.
- Corporate communications — prep internal photos for external use without ever uploading them anywhere.
macOS 11+ · Apple Silicon native · 100% local processing
Why local processing
Images carry EXIF metadata — capture time, GPS coordinates, camera model. Online converters can leak that data to a third-party server. Image Tool+ runs inside macOS's App Sandbox with no network access: "trust us" is replaced with "the OS won't allow otherwise."
FAQ
Q. How is this different from a free online converter?
The biggest differences are privacy and speed. Online services upload your images and depend on your connection. Image Tool+ runs locally, so on Apple Silicon even hundreds of images finish in seconds, and your images never leave the device.
Q. Does it run on both Apple Silicon and Intel Macs?
Yes. It's a Universal Binary running natively on both. Apple Silicon (M1/M2/M3) shows particularly large speedups in batch jobs.
Q. System requirements?
macOS 11 Big Sur or later. Background removal requires macOS 14 Sonoma or later.
Support
If you get stuck, find a bug, or want a new feature, send a note via the contact form below.Every message is read by the developer and feedback shapes the next update.
You don't have to worry about "what if it doesn't work for me." Try it, and if anything comes up, just let us know.
Download
Image Tool+ is a one-time purchase (¥1,300). Buy once and continue to use every feature.
macOS 11+ · Apple Silicon native · 100% local processing
Looking for format-specific tools? See WebP Converter. and AVIF Converter.