Exact File Size Generator
Create test files with exact byte-level precision for testing upload limits, storage capacity, API payloads, and bandwidth throttling. Choose decimal (1 MB = 1,000,000 bytes) or binary (1 MiB = 1,048,576 bytes) units.
How it works
- Specify the desired file size number and unit (Bytes, KB, MB, GB).
- Select Decimal (1000^n) or Binary (1024^n) sizing standards and format (.bin or .txt).
- The file stream is created in chunks in your browser and downloaded instantly without hogging RAM.
Privacy & Processing Information
Generated locally on your device via streaming Blobs without server involvement.
Frequently Asked Questions
What is the difference between decimal (KB) and binary (KiB) units?
Decimal units use powers of 1,000 (1 MB = 1,000,000 bytes), while binary units use powers of 1,024 (1 MiB = 1,048,576 bytes). Both are clearly selectable.
Are these dummy files valid media or PDF files?
No. These are raw test files (`.bin` or `.txt`) intended strictly for testing file upload limits, network throughput, and disk capacity.
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