Do my images upload to Reckap?

No. Conversion runs in your browser with the canvas API. Reckap does not receive the files for this tool.

Which formats are supported?

Inputs (when the browser can decode them): PNG, JPG, WebP, GIF (first frame), BMP, AVIF, HEIC/HEIF, ICO. Outputs: WebP, JPG, PNG, BMP, ICO, and AVIF only when this browser can encode AVIF. SVG is not allowed. HEIC encode is not available in browsers.

Why is HEIC or AVIF sometimes failing?

Decode and encode depend on the browser. HEIC usually opens in Safari. AVIF encode appears only when canvas encoding works in this browser. Otherwise choose WebP or JPG.

What resize options exist?

Keep original size, cap the longest edge, scale by percent, or set a custom width and height. Custom mode supports stretch, contain with a background color, and cover (crop fill).

How is this different from Squoosh or Convertio?

Squoosh is strong for single-image codec experiments; many Convertio-class sites upload files to a server. Reckap focuses on private batch conversion with resize and ZIP on your device.

Products

Image Converter

Convert PNG, JPG, WebP, GIF, BMP, AVIF, HEIC, or ICO in your browser with resize and ZIP.

Use tool How we work

reckap.com/products/image-converter

Runs in your browser. Files stay on your device - Reckap does not upload them for this tool.

Image Converter

Convert images on your device: PNG, JPG, WebP, GIF, BMP, AVIF, HEIC (when the browser can decode), and ICO. Export WebP, JPG, PNG, BMP, ICO, and AVIF when encode is available. Resize by max edge, percent, or custom box with stretch / contain / cover. Reckap never uploads these files.

Drop images here

PNG JPG WebP GIF BMP AVIF HEIC ICO , max 20 files, 15 MB each

Output format

Resize mode

Max edge (2048px)

Quality (88%)

Input

Add images to preview

Output preview

Output appears here

Live encode of the selected input

No files yet.

File toolsweb

Reckap Image Converter changes image formats on your device. Resize by edge, percent, or custom box (contain/cover/stretch), preview input and output, then download a file or ZIP. Nothing is uploaded to Reckap.

Convert images on your device with Reckap Image Converter. Add PNG, JPG, WebP, GIF, BMP, AVIF, HEIC, or ICO when this browser can decode them. Export WebP, JPG, PNG, BMP, ICO, and AVIF when encode is available. Resize by max edge, percent, or custom width×height with stretch, contain (custom background), or cover. Preview input vs output, then download one file or a ZIP. SVG is rejected. Files are not uploaded to Reckap.

Broad import: PNG JPG WebP GIF BMP AVIF HEIC ICO
Export: WebP JPG PNG BMP ICO + AVIF when supported
Resize: max-edge, %, custom + contain/cover/stretch
Live input vs output preview + batch ZIP
No account or upload

Use tool Talk to Reckap

How to use

Add images
Drop or browse supported images. The tool checks type, size, and pixel limits. HEIC needs a browser that can decode it (typically Safari).
Choose format and resize
Pick an export format, then resize by max edge, percent, or custom size with contain, cover, or stretch. Set a letterbox background for contain or opaque JPG/BMP.
Download
Convert one image to a single download, or convert a batch to a ZIP. Processing stays in browser memory.

FAQ

Related tools

More Reckap browser tools in the same lane.

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