What is Image Convert?
Image Convert is a free suite of browser-local image tools built for preparing pictures directly on your device. It handles HEIC and HEIF conversion to JPG or a single PDF, works with JPEG, PNG, and WebP formats, compresses images toward a target size, resizes and crops, and applies text watermarks to batches. The seven task-specific tools require no sign-in, and supported files are processed locally in the browser rather than uploaded for processing.
Who it's for
- Phone photographers — converting HEIC and HEIF shots into JPG or a single ordered PDF without hunting for desktop software.
- Privacy-conscious users — anyone handling family photos, personal images, or application documents who prefers files to stay on their own device.
- Web publishers and report writers — people who need quick compression, resizing, cropping, or watermarking before images go into a page or document.
Key features
HEIC and HEIF conversion
HEIC and HEIF photos can be converted to JPG or combined into one ordered PDF. This uses a bundled libheif runtime, so iPhone-style photos become usable in more places.
Format conversion and compression
JPEG, PNG, and WebP are the tested inputs for conversion, and compression targets a chosen file size. Compression may reduce quality or dimensions to meet that limit.
Resizing and cropping
Resizing changes pixel width and height or scales an image by a percentage. Cropping lets you trim an image to the framing you want.
Batch text watermarking
Text watermarks can be added across a batch of images. Finished results download as individual images, a ZIP of successful batch results, or a single PDF.
What stands out
Your images never need to leave your device for the processing to happen.
That local-first approach is the core of the experience. WebAssembly lets established image-processing code run alongside JavaScript in the browser, so once the required code loads, supported tasks behave much like an offline converter. Source files, full file names, decoded content, intermediate data, and generated outputs are not sent off your device for processing.
Worth checking out if…
You want practical image preparation without installing desktop software, and you'd rather not create an account or hand your files to a cloud service. It's also a good fit if you regularly deal with HEIC photos, need to hit a specific file size, or want to watermark a batch in one pass. Just keep the trade-offs in mind: JPEG uses lossy encoding, transparent areas become white when converted to JPEG, metadata may not be preserved, animated images aren't kept as animated outputs, and very large images may be limited by browser or device memory.
