FreeKit is a collection of free online tools for developers, SEO professionals, designers, students, content creators, and everyday users.

Are all tools completely free?

Yes. Every tool on FreeKit is free to use without subscriptions or hidden charges.

Do I need to create an account?

No. You can use all tools instantly without creating an account.

No. Most tools process data locally in your browser, and we do not permanently store your inputs.

Can I use FreeKit on mobile devices?

Yes. Every tool is fully responsive and works on smartphones, tablets, laptops, and desktop computers.

How often are new tools added?

We regularly add new tools and improve existing ones based on user feedback and industry needs.

Which browsers are supported?

FreeKit supports all modern browsers, including Chrome, Edge, Firefox, Safari, and other Chromium-based browsers.

Can I share these tools with others?

Absolutely. You are welcome to share FreeKit with friends, colleagues, students, and your team.

What is image compression?

Image compression is the process of reducing an image file's size by encoding it more efficiently. It removes unnecessary data while preserving as much visual quality as possible, making files easier to store and share. There are two main types: lossy compression, which permanently discards some data, and lossless compression, which reduces size without any quality loss.

How does this image compressor work?

Our image compressor runs entirely in your browser using advanced client-side algorithms. You simply upload an image, adjust the quality slider to your preference, and the tool processes the file instantly. Because everything happens locally on your device, your images never leave your computer, ensuring complete privacy.

Is it safe to upload images here?

Yes, it is completely safe. All image processing happens directly in your browser — no files are uploaded to any server. Your images never leave your device, which means there is zero risk of data breaches, unauthorized access, or privacy violations. You can confidently compress even sensitive images.

What image formats are supported?

Our compressor supports the three most common web image formats: JPEG (JPG), PNG, and WebP. JPEG is ideal for photographs and complex images, PNG works best for graphics with transparency, and WebP offers superior compression for both photos and graphics. You can also convert between formats while compressing.

Does compression reduce image quality?

It depends on the compression level you choose. Lower compression levels produce smaller files with minimal quality loss that is often invisible to the naked eye. Higher compression results in even smaller files but may introduce slight artifacts or blurriness. Our real-time preview lets you compare the original and compressed versions side by side before downloading.

Can I compress multiple images at once?

Yes, you can upload and compress multiple images simultaneously. Simply drag and drop several files or select them from your file picker, and the tool will process each one according to your chosen quality settings. This batch processing feature saves significant time when you need to optimize an entire gallery or set of images.

What quality level should I use?

For most web and social media use, a quality level between 70% and 85% provides an excellent balance between file size and visual clarity. Use 85-95% for high-quality prints or professional portfolios, and 50-70% for thumbnails, email attachments, or where loading speed is critical. The best approach is to experiment with the slider while checking the live preview.

Is there a file size limit?

Since all processing happens in your browser, the only practical limit is your device's available memory. Most modern browsers can comfortably handle images up to 50 MB or larger. However, very large images may take slightly longer to process. There are no artificial file size restrictions imposed by our tool.

Can I convert images while compressing?

Yes, you can convert your images to a different format at the same time you compress them. For example, you can compress a large PNG and export it as a WebP or JPEG, which typically results in a much smaller file. This dual capability lets you both optimize file size and adopt modern web formats in a single step.

How much can I reduce file size?

The amount of reduction varies depending on the original image format, content complexity, and your chosen quality setting. JPEG and WebP files can typically be reduced by 50-80% with little to no visible quality loss. PNG files converted to JPEG or WebP often see even greater savings of 70-90%. The real-time preview shows you the exact savings before you download.

Is this tool free to use?

Yes, this image compressor is 100% free to use with no hidden costs, subscriptions, or premium tiers. There are no limits on how many images you can compress or how often you can use the tool. We believe everyone should have access to fast, high-quality image optimization without paying for expensive software.

Do you store my uploaded images?

No, we never store your images — not even temporarily. Because all compression is performed locally in your browser using JavaScript, your files are never transmitted over the internet to our servers or any third-party service. Once you close the tab or navigate away, all traces of your uploaded images are gone.

Image Compressor

Compress images to reduce file size without losing quality.

BeginnerImage ToolsFreev1.0.0Updated Jul 22, 2025

Quality80%

Smallest fileBest quality

Output Format

Drag & drop images here, or browse

PNG, JPG, WebP up to 50MB each

How to Compress Images Online

Compressing your images takes just a few simple steps. Follow this guide to get started:

Upload your image — Drag and drop a PNG, JPG, or WebP file onto the upload area, or click the browse button to select files from your device.
Adjust quality — Use the quality slider to choose your desired compression level. Lower values produce smaller files with reduced quality; higher values retain more detail.
Select output format — Choose JPEG, PNG, or WebP as the output format. Need to convert formats? Try our PNG to JPG Converter or JPG to PNG Converter for quick format swaps.
Click Compress — Hit the compress button and your image will be processed instantly in your browser.
Download the result — Preview the compressed image side by side with the original, then click download to save it to your device.

Features

Client-side processing — your images never leave your browser
Adjustable quality slider from 1% to 100%
Output format selection: JPEG, PNG, or WebP
Side-by-side before and after preview
Batch compression — process multiple images at once
Real-time file size comparison with compression percentage
Support for images up to 50MB
No watermarks, no sign-up, no limits
Drag and drop or click to upload
One-click download for compressed files

Benefits

Faster Websites

Compressed images load significantly faster, improving your Core Web Vitals score and boosting your search engine rankings. For a deeper SEO analysis, check out our free Meta Tag Generator to optimize your page metadata.

Meta Tag Generator →

Save Storage Space

Reduce the disk space used by your photo library, backups, and project assets without losing visual quality.

Complete Privacy

All compression happens in your browser. Your images are never uploaded to any server — zero data leaves your device.

Compression Examples

Format	Original Size	Quality	Compressed Size	Reduction
JPEG Photo	4.2 MB	80%	680 KB	-84%
PNG Screenshot	2.1 MB	75%	320 KB	-85%
WebP Graphic	1.8 MB	85%	450 KB	-75%
JPEG Banner	3.5 MB	70%	490 KB	-86%

Common Use Cases

Blog & Website Images

Reduce image sizes for faster page loads and better Core Web Vitals scores.

Email Attachments

Compress photos to fit within email attachment size limits.

Social Media Posts

Optimize images for platforms like Instagram, Facebook, and Twitter.

E-commerce Product Photos

Speed up product page loading for higher conversion rates.

Presentations & Documents

Reduce file sizes for PowerPoint, Google Slides, and PDF documents.

Game & App Assets

Compress texture and sprite assets for faster download and rendering.

Backup & Storage

Save disk space on your local backups and cloud storage.

SEO Optimization

Lighter images improve page speed, which is a direct Google ranking factor.

Best Practices

Use WebP format for web images — it typically provides the best compression with minimal quality loss. Image to WebP Converter.
For JPEG photos, a quality setting of 75-85% offers an excellent balance between file size and visual quality.
Always keep a copy of your original images before compressing, especially for important work.
For transparent PNGs, choose PNG output to preserve transparency, or use WebP for better compression.
Test compressed images on different devices and screen sizes to ensure quality is acceptable.
Batch compress all your website images at once to save time during optimization workflows.

Common Mistakes to Avoid

Setting quality too low — below 40% can produce noticeable artifacts and blurriness.
Compressing already-compressed images — this compounds quality loss without significant size reduction.
Ignoring output format — choosing the wrong format can result in larger files than the original.
Not testing on mobile — compressed images may look different on high-DPI mobile screens.
Using lossy compression for screenshots — PNG with lossless compression is usually better for text-heavy screenshots.

Frequently Asked Questions

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Convert PNG images to JPG format with quality control.

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JPG to PNG Converter

Convert JPG images to PNG format with transparency support.

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All in One Image Converter

Convert images between any format — PNG, JPG, WebP, AVIF, BMP, GIF, and more.

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Faisal Hossain

Founder & Developer of FreeKit

I personally designed and built every tool on this website — including the one you just used. If these tools have been helpful, I can build custom tools, automation workflows, websites, and SEO solutions tailored to your business.

Services

SEO Audit, Technical SEO & On-Page SEO
WordPress & Shopify Development
WooCommerce & E-commerce Management
n8n & AI Workflow Automation
Python Automation & Web Scraping
VPS, Linux & Self-Hosted Infrastructure
AI Vibe Coding Expert — APPS, WEB, SAAS

Availability

Remote: Available Now

United States & European company

USD $25/hour or USD $1,500/month

On-site: Open to Relocation

With work visa & travel support

Email Me WhatsApp LinkedIn

View full profile & services

How to Compress Images Online

Compressing your images takes just a few simple steps. Follow this guide to get started:

Upload your image — Drag and drop a PNG, JPG, or WebP file onto the upload area, or click the browse button to select files from your device.

Adjust quality — Use the quality slider to choose your desired compression level. Lower values produce smaller files with reduced quality; higher values retain more detail.

Select output format — Choose JPEG, PNG, or WebP as the output format. Need to convert formats? Try our PNG to JPG Converter or JPG to PNG Converter for quick format swaps.

Click Compress — Hit the compress button and your image will be processed instantly in your browser.

Download the result — Preview the compressed image side by side with the original, then click download to save it to your device.

Features

Client-side processing — your images never leave your browser

Adjustable quality slider from 1% to 100%

Output format selection: JPEG, PNG, or WebP

Side-by-side before and after preview

Batch compression — process multiple images at once

Real-time file size comparison with compression percentage

Support for images up to 50MB

No watermarks, no sign-up, no limits

Drag and drop or click to upload

One-click download for compressed files

Benefits

Faster Websites

Meta Tag Generator →

Save Storage Space

Reduce the disk space used by your photo library, backups, and project assets without losing visual quality.

Complete Privacy

All compression happens in your browser. Your images are never uploaded to any server — zero data leaves your device.

Format

Original Size

Quality

Compressed Size

Reduction

JPEG Photo

4.2 MB

80%

680 KB

-84%

PNG Screenshot

2.1 MB

75%

320 KB

-85%

WebP Graphic

1.8 MB

85%

450 KB

-75%

JPEG Banner

3.5 MB

70%

490 KB

-86%

Common Use Cases

Blog & Website Images

Reduce image sizes for faster page loads and better Core Web Vitals scores.

Email Attachments

Compress photos to fit within email attachment size limits.

Social Media Posts

Optimize images for platforms like Instagram, Facebook, and Twitter.

E-commerce Product Photos

Speed up product page loading for higher conversion rates.

Presentations & Documents

Reduce file sizes for PowerPoint, Google Slides, and PDF documents.

Game & App Assets

Compress texture and sprite assets for faster download and rendering.

Backup & Storage

Save disk space on your local backups and cloud storage.

SEO Optimization

Lighter images improve page speed, which is a direct Google ranking factor.

Best Practices

Use WebP format for web images — it typically provides the best compression with minimal quality loss. Image to WebP Converter.

For JPEG photos, a quality setting of 75-85% offers an excellent balance between file size and visual quality.

Always keep a copy of your original images before compressing, especially for important work.

For transparent PNGs, choose PNG output to preserve transparency, or use WebP for better compression.

Test compressed images on different devices and screen sizes to ensure quality is acceptable.

Batch compress all your website images at once to save time during optimization workflows.

Common Mistakes to Avoid

Setting quality too low — below 40% can produce noticeable artifacts and blurriness.

Compressing already-compressed images — this compounds quality loss without significant size reduction.

Ignoring output format — choosing the wrong format can result in larger files than the original.

Not testing on mobile — compressed images may look different on high-DPI mobile screens.

Using lossy compression for screenshots — PNG with lossless compression is usually better for text-heavy screenshots.

Frequently Asked Questions