● Local browser processing

Private batch image tools that run in your browser

Process multiple JPEG, PNG and WebP files locally in your browser, remove metadata and download every result as a ZIP.

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JPEG, PNG and WebP · Multiple files supported · Files never leave your device

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Direct answer · private batch image tools

What is Kompixa?

Kompixa is a free batch image toolkit that processes supported files locally in the browser. It combines target-size compression, conversion, resizing, metadata checks and ZIP downloads without uploading source images to a Kompixa server.

Core workflow: Batch resize, compress, convert and rename images locally, then download completed outputs individually or together.

Evidence on this page

The site publishes its browser benchmark methodology, downloadable results and explicit device limitations.

Important limit

Local processing is limited by browser support, device memory, image dimensions and file complexity.

Why use Kompixa?

One workflow instead of five separate tools
No upload, account or watermark
Batch processing and predictable file names

How it works

Choose several images, set the desired dimensions, format and optional maximum file size, then process everything in one batch. The images are re-encoded locally, which also removes embedded metadata such as GPS coordinates.

Popular workflow

Compress images to 500KB or less — process several JPEG, PNG or WebP files and download the results individually or as ZIP.

Real compression test

In one desktop-browser test, a 1920×1080 PNG went from 1.26 MB to about 102 KB as WebP while keeping the same dimensions. Read the method and limitations.

Common questions

Are my images uploaded?

No. Processing runs inside your browser and the original files are not sent to Kompixa.

Which formats work?

This first release supports JPEG, PNG and WebP. Browser support can vary.

Can the tool hit an exact KB target?

For JPEG and WebP, Kompixa adjusts quality and, when needed, dimensions to get under the selected limit while preserving as much quality as possible.

Free image workflows

Choose a ready-to-use workflow. Every tool runs locally in your browser.

Compress Images to 500KBReduce multiple JPEG, PNG or WebP files below 500KB while keeping as much visual quality as possible.Batch PNG to WebP ConverterConvert multiple PNG images to WebP in one batch and download the results together as a ZIP.Compress Photos for EmailMake multiple photos easier to attach to email by reducing dimensions and file size in one batch.Batch Resize and Rename ImagesResize many images to consistent maximum dimensions and apply predictable file names in one workflow.Remove Metadata from Multiple PhotosRe-encode several photos locally to remove embedded EXIF and GPS metadata before sharing.Resize Images and Download as ZIPResize multiple images together and download every processed file in a single ZIP archive.Convert, Resize and Compress ImagesRun format conversion, resizing, compression, metadata removal and renaming in one batch workflow.Optimize Images for a WebsitePrepare web-ready images with WebP conversion, sensible dimensions, smaller files and clean names.

Proof, privacy and project information

See measured results, how local processing works and who maintains Kompixa.

Real compression case study1.26 MB PNG to about 102 KB WebP with settings and limitations.Privacy explainedWhat stays on your device and what normal website hosting still processes.About KompixaPurpose, product principles and how measured claims are documented.

Practical image-processing guides

Choose formats, understand target-size compression, remove metadata safely and organize batch output.

PNG vs JPEG vs WebPChoose the right format for photos, transparency and the web.Compress to a target sizeUnderstand quality search, dimensions and maximum file-size targets.Remove EXIF and GPSSee what re-encoding removes and what can still reveal private information.Batch resize and renamePreserve aspect ratio and create predictable output names.

Advanced local batch processing

Inspect metadata, compare before and after, and override settings per file

Kompixa checks detectable EXIF, GPS, XMP, ICC, IPTC and text metadata locally, verifies newly encoded outputs, warns when JPEG would flatten transparency, supports per-file format and size overrides, processes safe batches in parallel and lets you cancel without losing completed results.

Try metadata verification Run the repeated 100-scene benchmark

Premium-style local features, free

Crop, rotate, watermark, save recipes and use AVIF when your browser supports it

Kompixa does not place these local tools behind a subscription, advertisement or daily conversion counter. Files stay on the device, while practical limits come from browser support and available hardware.

Use all batch tools See the honest comparison

Open browser research tools

Inspect, measure and reproduce image-processing results

Use the metadata inspector, target-size estimator, browser support test and deterministic format benchmark before applying settings to a full batch.

Open the Image Tools Lab Run the benchmark

Exact-size workflows and original data

Choose a real file-size preset or inspect the 2026 browser report

Kompixa now separates strict 50KB and 100KB tasks from quality-first 200KB, balanced 500KB and high-detail 1MB workflows. Each page opens different working settings rather than repeating one generic tool.

Exact-size compressor hubCompare five working presets and calculate the required reduction.Browser compression report 2026Review the 100-scene data, trade-offs and raw downloads.Squoosh alternative comparisonChoose interactive codec tuning or repeatable batch processing honestly.Embeddable size calculatorUse a lightweight optional-attribution widget on another site.