Stress-test your UI with ugly, real-world content.
A Chrome extension for frontend developers and designers to pressure-test layouts with long names, verbose labels, emails, URLs, prices, missing content, and more.
Layout Pressure is a visual UI stress-testing tool.
It lets you apply a single test mode to a real page and instantly see how the interface behaves when content stops being neat and friendly.
Use it to catch:
- truncation bugs
- broken wrapping
- overflow
- cramped buttons
- layout collapse
- cards and tables that only work with short demo content
Instead of manually editing copy everywhere, you can apply realistic stress profiles like:
- Long Names
- Verbose Labels
- Long Emails & URLs
- Huge Numbers & Prices
- No Spaces
- Long Addresses
- Empty / Missing
Most UIs look polished because the content is polite.
Real users are not.
They bring absurdly long names, giant emails, weird URLs, verbose addresses, no-space strings, huge numbers, and missing values. Layout Pressure helps expose those problems early, while you're still building.
| Usage 1 | Usage 2 |
|---|---|
 |
 |
- Apply one stress profile at a time
- See layout issues instantly on real pages
- Clean panel with focused test modes
- Reset back to original content
- Works great on localhost, staging, and real production UIs for inspection
- Visible text only
- No data sent
| Mode | What it does |
|---|---|
| Long Names | Replaces text with extra-long personal and company names |
| Verbose Labels | Expands button and label text into long-winded UI copy |
| Long Emails & URLs | Injects long emails, domains, and unbreakable URLs |
| Huge Numbers & Prices | Replaces values with large numbers, prices, and counts |
| No Spaces | Inserts long strings without natural word breaks |
| Long Addresses | Replaces text with verbose multi-part addresses |
| Empty / Missing | Replaces values with empty, whitespace, or placeholder-like content |
- Go to the latest release
- Download the packaged extension files
- Open
chrome://extensions - Enable Developer mode
- Click Load unpacked
- Select the extracted extension folder
git clone https://github.com/Sammy970/layout-pressure.git
cd layout-pressure
# add your install/build commands hereThen load the built extension into Chrome via chrome://extensions.
- Open a page you want to test
- Open Layout Pressure
- Pick a test mode
- Watch the page react immediately
- Inspect where the layout breaks
- Click Reset to original to restore the page
- marketing pages
- dashboards
- pricing pages
- tables
- cards
- forms
- nav-heavy layouts
- staging builds before QA
- Checking whether buttons survive long labels
- Stress-testing cards with huge names and prices
- Breaking nav bars with long content
- Finding overflow from unbreakable strings
- Seeing how “missing content” affects spacing
- Testing real UI resilience before release
layout-pressure/
├─ assets/
│ ├─ icon.png
│ ├─ screenshots/
│ │ ├─ panel.png
│ │ ├─ usage-bookmyshow.png
│ │ └─ usage-long-emails.png
│ └─ demo/
│ └─ layout-pressure-demo.gif
├─ src/
├─ public/
└─ README.md
- Best used in Chromium-based browsers
- Some highly dynamic apps may partially re-render content
- Start with visible text surfaces first
- One profile at a time keeps the output readable
Found a weird case? Have an idea for a brutal new test mode?
- Open an issue
- Start a discussion
- Share screenshots of broken layouts
Add your preferred license here.