Batch Image Converter - Free Desktop App

There's no limit. Select 10, 100, 1,000, or even 10,000 images and convert them all in one batch. Diwadi processes images in parallel using your computer's GPU/CPU, so even large batches finish in seconds to minutes depending on your hardware.

No. Diwadi processes everything locally on your computer. Your images never leave your device. This is critical for sensitive content like personal photos, ID documents, client work, or medical images.

Diwadi converts between HEIC, JPEG, PNG, WebP, BMP, TIFF, and GIF. The most common conversions are HEIC to JPG (iPhone photos), PNG to JPG (smaller files), and JPG to WebP (web optimization).

Yes — this is one of the most popular conversions. Select all your HEIC photos, choose JPEG as the output format, and Diwadi converts them all at once. No need to convert one by one like most online tools require.

Converting between lossy formats (like JPEG to WebP) involves re-encoding, which can cause minor quality loss. Converting from lossless to lossy (PNG to JPEG) discards some data. For best results, keep quality settings at 85-95%. Converting from lossy to lossless (JPEG to PNG) preserves current quality but increases file size.

Yes. Diwadi lets you set output dimensions alongside format conversion. Convert 500 HEIC photos to 1080px-wide JPEGs in one operation — format change and resize happen simultaneously.

Diwadi processes images locally with no upload/download overhead. 50 images typically convert in 5-10 seconds. 500 images in under a minute. Online tools take 3-5 minutes for 50 images because they require uploading, processing, then downloading.

Yes. Diwadi works completely offline. Convert images on a flight, in a cafe with no WiFi, or in a secure environment with no internet access.

Yes. Diwadi's batch image converter is free with no limits on file count, file size, or daily usage. No watermarks, no account required.

Originals are always preserved. Diwadi creates converted copies alongside your original files (e.g., photo.heic → photo.jpg). You can also choose a separate output folder.

Yes, and it's one of the best ways to save storage. PNG screenshots are typically 3-8MB each. Converting to JPEG at 85% quality reduces them to 300-800KB — a 70-90% size reduction. Select all your screenshots and batch convert in seconds.

For batch conversion, yes. Preview and Paint convert one image at a time. If you have 100 photos to convert, that's 100 manual operations. Diwadi does all 100 in one click, with consistent settings across every image.