10 KB HTML sample file
An HTML file of exactly 10,240 bytes. It is a valid HyperText Markup Language file, generated for this site and checked with an independent parser.
Download
sample-html-10kb.html
10 KB10,240 bytes
Download 10 KB HTMLDirect download. No sign-up and no waiting.
- Type
- text/html
- SHA-256
08dacaf6daf06340aca0acf08c903d9b279315cfc32de75aa16f9636bef4c8e5- Direct URL
https://sampletestfiles.com/downloads/html/sample-html-10kb.html
What is in this file
A complete HTML document with 17 sections of headings and paragraphs and one small inline style block. It loads no scripts or external resources. An HTML comment before the closing tags brings it to the exact size.
| Sections | 17 |
|---|---|
| Doctype | HTML (Living Standard) |
| Scripts | None |
| External resources | None |
| Encoding | UTF-8 (ASCII characters only) |
How the file begins
The opening lines of sample-html-10kb.html, exactly as they appear in the file.
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<meta name="robots" content="noindex">
<title>Sample HTML file (10 KB)</title>
<style>body{font-family:system-ui,sans-serif;line-height:1.5;max-width:42rem;margin:2rem auto;padding:0 1rem}h2{margin-top:2rem}</style>
</head>
<body>
<main>
<h1>Sample HTML file (10 KB)</h1>
<p>A static test page with no scripts, no external resources and no tracking.</p>
<section id="section-1">Preview
Shows the file contents.
Where 10 KB matters
A 10,240-byte file that still arrives in the first round trip of a new connection. These are the default limits a file of this size is useful for testing:
| System | Limit | Note |
|---|---|---|
| TCP initial congestion window | About 14.6 KB (10 segments) | A 10 KB response fits in the first flight of packets; the 25 KB sample does not. |
| nginx and Apache request headers | 8 KB per header line by default | Data this large must go in the request body. |
| webpack asset modules | 8 KB by default | Assets over the threshold are emitted as files instead of data URIs. |
Use this file for
- Checking thumbnail and icon handling
- Testing scrapers and HTML-to-text conversion
- Testing HTML sanitisers and upload filters
Testing notes for HTML
- Serve uploaded HTML with Content-Disposition: attachment or from a separate domain, and send X-Content-Type-Options: nosniff.
- A text file that merely starts with a tag can be sniffed as HTML by older browsers if the Content-Type header is missing.
Technical details
| File name | sample-html-10kb.html |
|---|---|
| Format | HTML (HyperText Markup Language) |
| Extension | .html |
| MIME type | text/html |
| Size | 10,240 bytes (10 KB) |
| Kind | Text |
| Signature | 3C 21 44 4F 43 54 59 50 45 |
| SHA-256 | 08dacaf6daf06340aca0acf08c903d9b279315cfc32de75aa16f9636bef4c8e5 |
| Created | 2026-10-10 |
| Validation | Exact size, signature bytes and structure checked when the file was generated |
| Preview | Available on this page |
| Source | Generated for this site; not copied from elsewhere |
| Licence | Free to use, modify and redistribute (terms) |
| Category | Documents |
Validated for expected format and integrity. As with any download, scan the file with your own security tools before opening it. How files are made and checked
Download from the command line and verify
Fetch the file with curl, then compare its checksum with the SHA-256 value above.
curl -o sample-html-10kb.html 'https://sampletestfiles.com/downloads/html/sample-html-10kb.html'
sha256sum sample-html-10kb.html # Linux
shasum -a 256 sample-html-10kb.html # macOSOn Windows, run Get-FileHash sample-html-10kb.html -Algorithm SHA256 in PowerShell. A matching value proves that the download is complete and unaltered.
Related files
Questions about this file
- Is this file exactly 10 KB?
- Yes. It is 10,240 bytes, which is 10 KB in the binary units that operating systems and server limits use (1 KB = 1,024 bytes).
- What is inside the 10 KB HTML file?
- A complete HTML document with 17 sections of headings and paragraphs and one small inline style block. It loads no scripts or external resources. An HTML comment before the closing tags brings it to the exact size.
- Do the HTML samples run any scripts?
- No. They are static documents with one small inline style block, no scripts and no external resources, and they are marked noindex.