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Data Size Converter Free

Bytes, KB, MB, GB, TB, PB. Works entirely in your browser. Your files never leave your device.

Open Data Size Free
No file uploadNo account needed100% privateWorks offlineAlways free
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What is Data Size?

Data Size is a free browser-based tool that runs entirely in your browser. No file uploads, no account needed, and no data stored. Fast, private and always free.

This tool lets you bytes, kb, mb, gb, tb, pb without installing any software or creating an account. Everything runs directly in your browser for maximum privacy. Your files and data never leave your device.

Use it for quick tasks at any time from any device — desktop, tablet or mobile. No subscription, no ads, no limits.

⚡
Instant results
No server processing or wait
🔒
100% private
Files stay on your device
💰
Always free
No subscription or fees
📱
Mobile ready
Works on any device

How to use Data Size

  1. Open the Data Size tool
  2. Enter your input data or upload your file
  3. Configure the settings for your use case
  4. Download or copy the result

Why use OnlineToolsPlus?

OnlineToolsPlus processes everything locally in your browser. Your files, text and data never leave your device, which eliminates server-side privacy risks. With 200+ free tools covering PDF, image, AI writing, developer utilities, calculators, SEO, color tools and more, there is no need to juggle multiple subscriptions or install software.

Frequently asked questions

What data size units are supported?
Bytes, kilobytes, megabytes, gigabytes, terabytes, and petabytes are all available.
Is 1 kilobyte 1000 or 1024 bytes?
This depends on the convention. The strict SI convention uses 1000 bytes per kilobyte. Operating systems and some tools use 1024 bytes, calling this a kibibyte technically. For everyday file sizes the difference is small but for large storage calculations it adds up.
How many megabytes is a gigabyte?
In common usage, 1 gigabyte is 1000 megabytes using SI convention, or 1024 megabytes using the binary convention used by some operating systems.
How much data does a typical photo use?
An uncompressed phone photo is typically 3-8 megabytes. Compressed versions can be under 1 megabyte. RAW format photos can be 20-50 megabytes.
Does the tool work offline?
Yes. All conversions are local.
What is a petabyte?
A petabyte is 1000 terabytes or 1 million gigabytes. Large data centers and cloud storage providers measure storage in petabytes.

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Last updated: April 11, 2026

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