Image Converter

Choose a target format for a supported image batch, control transparency or a solid background, and review the actual encoded results before downloading.

Images and conversion

Choose 1–10 static PNG, JPEG or WebP images. Each file is limited to 32 MiB and the batch to 128 MiB. Each axis is limited to 16,384 pixels, with at most 25 million pixels per image and 60 million in total.

Target format

Quality

Enter a whole number from 1 to 100. This is an encoder setting, not a percentage of retained detail or a target file size.

Solid background

Enter #RGB or #RRGGBB.

Converted images

Choose images and convert the batch to review the encoded results.

The tool does not upload or save your images, names or results. Downloads are explicit; ordinary site services retain their own privacy behavior.

Convert an image batch

Select up to ten supported static PNG, JPEG or WebP images. The picker replaces the current batch without merging or deduplicating it.
Choose PNG, JPEG or WebP, then set the active quality and transparency or solid-background options.
Convert explicitly, inspect the encoded results, and download individual files or create a ZIP containing those same bytes.

Choose a useful output

JPEG is opaque and uses the selected solid background. PNG can retain transparency without a quality slider; WebP supports a quality setting and optional transparency.

Keep transparency avoids deliberate background compositing. A checkerboard only helps you view alpha; it is not part of the downloaded image.

Camera orientation is normalized before encoding. The resulting oriented pixel dimensions stay unchanged; this tool does not resize, crop or apply manual rotation.

JPEG and WebP quality values are encoder settings, not a percentage of retained detail or a promised file size. Converted files can be larger than their sources.

Common conversion choices

Convert a transparent PNG to JPEG with white or another opaque background instead of relying on an implicit black fill.

Convert a supported JPEG or WebP to PNG when your next application requires PNG. This does not restore detail already lost in the source.

Choose one output format for mixed supported inputs. Duplicate files remain separate, and the ZIP contains exactly the current individual results.

Know what changes

Only the stated static PNG, JPEG and WebP profiles are admitted. Animated images, SVG, HEIC, AVIF, TIFF and RAW are not silently reduced to another format or first frame.

The output targets standard at-most-eight-bit sRGB. Higher depth, wide-gamut or HDR appearance, hidden transparent colors and exact source color values are not preserved guarantees.

Original camera, GPS, EXIF, XMP and print-resolution metadata is not preserved by this contract. Known EXIF and XMP output is rejected, but this is not a forensic metadata-scrubbing certification.

Cancel stops publication, not every pending native browser operation. Limits and sequential processing reduce avoidable work without guaranteeing a mobile-safe memory peak.

Local image processing

The tool does not upload or save your images, names or results. Downloads and ZIP creation are explicit actions; ordinary site services retain their own privacy behavior.

Image conversion questions

Supported static PNG, JPEG and WebP can be converted in every direction, including a fresh encode to the same format. Other image formats are outside this version's stated profile.

JPEG has no transparency. The tool paints your selected opaque color before drawing the image, rather than silently treating the checkerboard or black as the intended background.

The browser's PNG encoding does not use this JPEG/WebP quality control. PNG encodes the resulting bitmap losslessly, not necessarily the original input's detail, color depth or hidden transparent values.

It preserves normalized oriented pixel dimensions. Camera orientation is applied once before encoding, but there is no manual transform or resize editor.

Different formats, alpha, source complexity and encoder settings can produce larger files. This is a format converter, not a guaranteed compression or target-size service.

No. It packages the current verified result files unchanged under their generic unique names, in the same order as the individual downloads.

Some browser reads, decodes and encodes cannot be physically aborted here. The cancelled result is discarded, and a new expensive operation waits until that native work settles.

Sources

These references describe image formats and browser methods; they do not certify browser output or this implementation.

Reviewed 8 November 2026. Orientation parsing uses a bounded TIFF subset; browser color and encoding behavior varies.

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