File Tools

File Size Checker

Inspect exact file sizes and metadata instantly. Fast, secure, and free — right in your browser.

Drag & drop your files here

or click to browse — your files stay private

All file types
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How to use File Size Checker

1
Open the toolLand on the File Size Checker page — no account or download required.
2
Upload your fileDrag and drop into the upload box, or click to pick files from your device.
3
Choose your optionsPick the settings that fit your needs; smart defaults are pre-selected.
4
Process & downloadHit the action button, watch the progress bar, and download your result.
Your privacy is protected. Your files are processed entirely in your browser — they never leave your device or get uploaded to any server.

About File Size Checker

File Size Checker by ToolTasker lets you inspect exact file sizes and metadata instantly. It runs entirely online in your browser, so there's nothing to install and your work is never shared. Whether you're a student polishing an assignment, an office handling daily paperwork, a business scaling its workflow, or a creator perfecting assets, file size checker delivers professional-quality results in seconds.

ToolTasker keeps the file size checker experience fast and private: all processing happens locally in your browser, so your files are never uploaded to a server. The tool works on every device — Windows, macOS, Android, and iOS — with the same clean, premium interface. Need more? Pair it with related tools like File Compressor, ZIP Creator, ZIP Extractor to handle your entire file workflow in one place.

Frequently asked questions

How do I use the File Size Checker tool?+
Upload your file using the drag-and-drop box (or click to browse), choose your options, press the action button, and download the finished result in seconds.
Is File Size Checker free?+
Yes — this tool is free to use with no signup. ToolTasker Premium unlocks batch processing, larger files, faster speeds, and an ad-free experience.
Are my files kept private?+
Your files are processed entirely inside your browser and are never uploaded to a server, so nothing you process leaves your device.
Which formats are supported?+
This tool works with the common formats for this task and a wide range of inputs.
Does it work on mobile?+
Yes. ToolTasker runs entirely in your browser, so the tool works on phones, tablets, and computers with nothing to install.