Manage files
File Tools
Compress files, check file types and sizes, and generate hashes.
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File Size Checker
Check the size of a file.
Hash Generator
Generate MD5 and SHA hashes.
File tools handle the practical side of working with documents and media — changing formats, reducing size and preparing files for sharing or upload. They are designed to be quick and dependable, with no software to install and no account to create.
Because everything is processed in your browser, your files remain private and the tools stay fast. That makes them well suited to sensitive documents and to situations where you just need one quick change without opening a large application.
How to use these tools
- Choose the tool that matches what you need to do to the file.
- Add your file by selecting it or dragging it into the page; it is read locally on your device.
- Set any options, such as a compression level or an output format.
- Check the result and the new file size before you save.
- Download the processed file — your original is never changed or uploaded.
Common ways people use them
- Compressing a file so it fits within an upload or attachment limit.
- Preparing a batch of files for a portal that only accepts certain formats.
- Quickly changing one file without launching heavy desktop software.
- Reducing the size of documents before sharing them over a slow connection.
- Handling private paperwork without trusting it to an online upload service.
Good to know
File size and units
File size is measured in kilobytes (KB) and megabytes (MB), where 1 MB is about 1,024 KB. Upload limits are usually given in MB, so knowing the size after compression tells you at a glance whether a file will be accepted.
Lossy vs lossless
Lossy compression drops some detail to make files much smaller and is common for photos and audio. Lossless compression keeps every bit of the original but saves less space. The right choice depends on whether small size or perfect fidelity matters more.
Local processing
These tools use your browser and your device’s memory to do the work, so files are never sent anywhere. That keeps them private and fast, and it also means very large files depend on how much memory your device has available.
Related tools & guides
Frequently asked questions
- Do I need to install anything?
- No. Every file tool runs directly in your browser with nothing to download or set up.
- Are my files kept private?
- Yes. Files are processed locally on your device and are not uploaded to any server.
- Is there a file size limit?
- There is no fixed limit, but very large files depend on your device memory since processing happens locally.
- What is the difference between KB and MB?
- A megabyte (MB) is about 1,024 kilobytes (KB). Most upload limits are given in MB, so a 2 MB limit is roughly 2,048 KB.
- Will compressing a file damage it?
- No. The original is left untouched and you download a new copy, so you can always try a different setting if the result is not quite right.
- Are these tools free?
- Yes. All file tools are free to use with no watermark or sign up.