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PNG to JPGConvert PNG images to compact JPG files locally.→JPG to PNGConvert JPG images to lossless PNG files locally.→PNG to WebPConvert PNG images to efficient WebP files locally.→WebP to PNGConvert WebP images to PNG directly in your browser.→JPG to WebPConvert JPG images to efficient WebP files locally.→WebP to JPGConvert WebP images to broadly supported JPG files locally.→Resize imageResize one or many images to exact pixel dimensions.→Compress imageReduce image file size with an adjustable quality setting.→Crop imageCrop images by entering precise coordinates and dimensions.→Rotate imageRotate images clockwise or counterclockwise without uploading.→View metadataInspect available image and EXIF metadata privately.→Remove metadataCreate a clean image copy without embedded metadata.→Format JSONPretty-print or minify JSON in your browser.→Validate JSONValidate JSON syntax and locate errors.→JSON to CSVConvert arrays of JSON objects into CSV.→CSV to JSONConvert CSV rows into structured JSON objects.→JSON to YAMLConvert valid JSON into readable YAML.→YAML to JSONConvert YAML documents into formatted JSON.→JSON to XMLConvert JSON data into an XML document.→XML to JSONConvert XML documents into formatted JSON.→Base64Encode UTF-8 text as Base64 and decode Base64 to text locally.→URL encodeEncode or decode URL components safely.→Generate hashGenerate SHA-256, SHA-384 or SHA-512 hashes from UTF-8 text.→Generate UUIDGenerate cryptographically strong UUID v4 identifiers.→Unix timestampConvert between Unix timestamps and human-readable dates.→Compare textCompare two blocks of text line by line.→Count wordsCount words, characters, sentences and lines instantly.→Deduplicate linesRemove repeated lines while preserving the first occurrence.→Sort linesSort text lines in ascending natural alphabetical order.→

Private browser tool

Image Compressor

Compress JPG, PNG and WebP images in your browser. Adjust quality, compare file sizes and download JPG output privately, with no upload or account.

✓ Local processing✓ No uploads✓ No account
  1. 1Add input
  2. 2Choose options
  3. 3Get result

Private on this device

Filemivo uses browser APIs to process your input on this device. File contents, filenames and metadata are not sent to our server or analytics.

Next step

Continue working with your file

Browse all tools →
PNG→

Resize image

Resize one or many images to exact pixel dimensions.

PNG→

Remove metadata

Create a clean image copy without embedded metadata.

JPG→WEBP
→

JPG to WebP

Convert JPG images to efficient WebP files locally.

Simple by design

From file to result in three steps

  1. 1

    Add JPG, PNG or WebP images.

  2. 2

    Set quality and select Compress image to create JPG output.

  3. 3

    Compare file sizes and previews, then download acceptable results.

Practical guidance

When to use Compress image

Best for

Reducing the size of photographs for sharing or publishing when JPG output is suitable.

What you get

The main Compress image action exports JPG at the current quality setting and keeps the original dimensions. Transparent areas become white.

Useful tip

Resize oversized images first. Recompressing an already optimized file may make it larger, so compare the actual output before keeping it.

Separate dimensions from quality

A 4000 × 3000 photo contains 12 million pixels. A 1200 × 900 version contains 1.08 million pixels. That is 91% fewer pixels, not a guaranteed 91% reduction in file size. Resize for the intended display, then adjust quality.

Compare before you download

Check the source and output sizes in the workspace. Inspect fine detail and gradients in the downloaded result at full size. The smallest file is only useful if it still looks acceptable where you intend to use it.

Follow the image compression workflow →

Good to know

Frequently asked questions

Can I compress an image to exactly 100 KB?+

There is no target-size control. Adjust quality, check the resulting size and try again if needed. Resize the image first when reducing quality alone is not enough.

Will my PNG remain a PNG?+

The main compression action creates JPG output, including for PNG input. Transparent pixels become white. Keep the original PNG if transparency is required.

Does compression reduce width and height?+

The main compression action keeps the original dimensions. Use Image Resizer to change the number of pixels before compression.

Why did the compressed file get bigger?+

The source may already be efficiently compressed, or it may contain graphics that encode better in another format. Compression is not guaranteed to reduce every file. Compare output sizes and keep the smaller acceptable version.

Does my file leave my device?+

No. This tool processes your file inside your browser and does not send its contents, name or metadata to Filemivo.

Is Compress image free?+

Yes. It is free to use and has no artificial file-size limit. Your browser and device memory determine the practical limit.