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Image Compressor

Online Image Compressor

Drop, upload or take a photo to get started.

Drag & drop images here

or choose an option below

PNGJPGJPEGWebPAVIFGIFSVGBMPTIFF+ more
Free daily limit: 100 imagesFree working files are temporary. Storage+ Vault saves only what you choose.
Learn more about Image Compressor

Reduce image file size for websites, email, ecommerce, storage cleanup, and repeatable image workflows.

HomeImage Compressor

Image Optimization

Online Image Compressor

Reduce image file size for websites, email, ecommerce, storage cleanup, and repeatable image workflows.

Compression results depend on the source image, format, dimensions, and chosen settings. Pictobank keeps the process visible so you can compare size, quality, and export choices before using the result.

Start Compressing ImagesHow Compression Works
No account required for basic toolsFree processed files are temporaryReview results before exportLocal/browser processing where available
Image Compressor original demo sampleImage Compressor processed demo sampleOriginalCompressed
Original Size6.1 MBCompressed Size237.1 KBReduced By96%Measured from generated sample

Sample generated locally from image-3.jpg. Visual changes may be subtle; use the measured size metrics.

Smaller filesFaster websitesLower storage costReviewable output
01

What This Tool Does

Reduces file size by applying practical compression settings while keeping visible quality reviewable.

02

Common Uses

Useful before publishing, email delivery, ecommerce uploads, and storage cleanup.

  • Website images
  • Product photos
  • Email attachments
  • Batch compression
03

Supported Formats

Common browser-supported image inputs can be prepared for JPEG, PNG, WebP, and AVIF-oriented workflows.

  • JPG
  • PNG
  • WebP
  • AVIF
04

Privacy & Storage

Free compressed images are temporary. Storage+ saves exports only when users choose to save.

Practical Guide

Image Compressor Guide

Practical reference for choosing settings, reviewing results, and using this tool in everyday Pictobank workflows.

01

What is image compression?

Compression reduces file size by changing how image data is encoded. The practical goal is a smaller file that still looks right for the intended use.

  • Lossy compression can remove detail.
  • Lossless compression preserves more data.
02

Why images become large

High dimensions, detail, transparency, metadata, and camera export settings can all add size.

  • More pixels means more data.
  • Metadata and color profiles can add extra weight.
03

When to compress

Compress after choosing the right dimensions and before publishing, emailing, or storing final delivery copies.

  • Before website publishing.
  • Before ecommerce uploads.
  • Before email attachments.
  • Before storage cleanup.
04

Common mistakes

Avoid applying one aggressive setting to every image without reviewing the result.

  • Over-compressing important images.
  • Ignoring dimensions.
  • Using PNG for large photos when transparency is not needed.

Workflow

How it works

1

Upload image or batch

2

Choose compression

3

Preview size change

4

Download export

Frequently Asked Questions

Fast answers for the most common decisions before you export.

When should I use image compression?

Use compression when the image already has acceptable dimensions and appearance but the file weight is too high for web, email, ecommerce, storage, or sharing.

When should I not use compression first?

Do not compress first when dimensions are much larger than the destination needs. Resize first, then compress the smaller export.

Why compress after resizing?

Resizing removes unneeded pixels before final encoding, so compression has less data to work through and usually creates a more practical output.

Why can a file get bigger after compression?

Small, transparent, already optimized, or format-mismatched files can grow if the output settings are not a good fit. Review size and format before export.

When should I use WebP vs AVIF?

WebP is a practical modern web default with broad support. AVIF can be smaller but may take longer and should be checked against destination support.

What should ecommerce teams check before upload?

Check marketplace dimensions, color realism, file-size limits, format support, and whether background requirements need to be handled outside Pictobank.

What should email users check?

Check recipient attachment limits, compatibility, and whether resizing would reduce size before compression.

Does compression remove metadata?

Do not assume it does. Use Remove Metadata when hidden file data matters, then review visible pixels before sharing.

Related Tools

Image ResizerImage ConverterImage EnhancerRemove MetadataPipeline Builder

Use it when

Example decisions

Short examples for choosing the right workflow before exporting.

Before upload

Resize or compress oversized source files before sending them to a website, email, or marketplace.

Before repeat work

Build a pipeline when the same enhance, resize, convert, and clean steps repeat every week.

Before sharing

Review visible content, output format, and hidden metadata before sending exports to others.

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Quick terms

Concise definitions for terms used in this guide.

JPEGA common photo format with adjustable quality.

Why it matters: It is widely supported but usually uses lossy compression.

Example: Use JPEG for broad compatibility when transparency is not needed.

PNGA common image format that supports transparency.

Why it matters: It is useful for graphics and transparent assets but can be large for photos.

Example: Use PNG when a logo or screenshot needs transparent areas.

WebPA modern web image format.

Why it matters: It often makes smaller web files while keeping broad browser support.

Example: Use WebP for product grids, landing pages, and blog images.

AVIFA newer image format with strong compression.

Why it matters: It can create smaller files but may take longer to encode.

Example: Use AVIF when size matters more than processing speed.

Lossy compressionCompression that may remove detail to reduce file size.

Why it matters: It can make files much smaller but should be reviewed visually.

Example: Use a less aggressive preset if product detail starts to soften.

Lossless compressionCompression intended to preserve more source data.

Why it matters: It usually saves less space but can be safer for graphics and reference files.

Example: Use lossless-style output when small visual changes are unacceptable.

Quality settingA compression control that balances appearance and file size.

Why it matters: A lower setting can shrink files more but may soften detail.

Example: Lower quality only after checking that product texture still looks acceptable.

File sizeThe storage weight of an image file.

Why it matters: Smaller files usually upload, email, and load faster.

Example: Compress a 4 MB web image before publishing when the page only needs a lighter asset.

Visual reviewA human check of the processed image before export or sharing.

Why it matters: Compression can be technically valid but still not right for the use case.

Example: Compare before and after views before replacing a product hero image.

Auto-rotates every 3 seconds.

Ready to try image compressor?

Open the Pictobank workspace, upload a supported file, and review results before export.

Start Compressing Images