Generate Fake ASCII
Swap ASCII letters for look-alike Unicode homoglyphs. Runs entirely in your browser, so your data never leaves your device.
0 chars · 0 lines
Output
The result appears here as you type.
How to use Generate Fake ASCII
- 1. Paste the text to disguise. Enter your original ASCII text in the input pane. The tool scans it for letters that have convincing Unicode look-alikes, such as the Cyrillic 'а' that renders almost identically to the Latin one.
- 2. Tune the Replacement chance. The Replacement chance (%) slider decides how many eligible letters get swapped. At 100 every candidate becomes a homoglyph for maximum effect; lower values scatter just a few confusables, which is subtler and harder to spot.
- 3. Copy the look-alike text. The output reads the same to a human but compares unequal to the original byte for byte. Copy it out and drop it wherever you are testing how software treats confusable input.
When to use Generate Fake ASCII
Generate Fake ASCII replaces plain Latin letters with Unicode homoglyphs, characters from other scripts that render nearly identically. Security teams use exactly this trick to test spoofing defenses, and content teams use it to understand why a string that looks right fails an exact match. This tool lets you create such text deliberately and reproducibly.
- Testing phishing and spoofing filters. Your email gateway or chat moderation should flag 'Раѕѕwоrd' as suspicious even though it looks like an ordinary word. Generate homoglyph variants of brand names and confirm the detector catches them.
- Probing username impersonation rules. Before launch, check whether your platform lets someone register a look-alike of an existing handle. Create confusable versions of admin and staff names and try them against the signup flow.
- Demonstrating why exact match fails. A stakeholder insists two strings are identical because they look identical on screen. Show them a homoglyph version failing a strict comparison to explain a confusing bug report in one screenshot.
- Dodging naive keyword filters in a demo. For a security awareness session, show how trivially a blocklist based on literal substrings is bypassed. A 40% replacement chance already defeats most plain-text keyword matching.
Examples
Fake it
Input
Password
Output
Раѕѕwоrԁ
About the Generate Fake ASCII tool
Generate Fake ASCII does its work locally, right in the browser. Swap ASCII letters for look-alike Unicode homoglyphs. There is no upload step, no queue and no account, and your data never travels over the network.
It belongs to the ASCII Tools collection on EditSafely, a set of 81 small, focused ASCII utilities that share the same instant, private workspace.
You can shape the output with the Replacement chance (%) setting, and the result refreshes the moment you change it. A worked example further down the page shows exactly what the tool produces for a real input.
Running locally also makes the tool fast and dependable: results appear as you type or drop a file, there is no server outage that can take it down mid-task, and confidential data can be processed without a second thought.
Frequently asked questions
Does Generate Fake ASCII cost anything?
Yes, it is completely free. All 2,658 tools on EditSafely work without an account, a subscription or usage limits.
Is it safe to paste sensitive or confidential data?
No data leaves your device. The whole tool is JavaScript that runs inside your browser tab, so there is no upload, no server-side processing and no log of what you did. If you disconnect from the internet after the page loads, it keeps working.
How much text can I process at once?
There is no fixed limit. Because the work happens on your own device rather than on a shared server, the practical ceiling is your machine's memory, which comfortably handles inputs far larger than typical online tools allow.
Do I need to sign up or install anything?
Nothing to install and no account needed. Open the page in any up-to-date browser, including on a phone or tablet, and the tool is ready.
How do I use the result?
The output panel has a one-click copy button, and you can keep refining the input while you work; the result updates in place as you type.