Result
All calculations run locally in your browser: parsing, chart, export. Disconnect the network and the page keeps working.
Facts and limits of this method
| Coverage | Latin letters a-z, A-Z, digits 0-9 and about 15 punctuation marks |
|---|---|
| Cyrillic | Has no widely-supported upside-down Unicode look-alikes, characters pass through unchanged |
| Character order | Reversed after every character is substituted |
| Technology | Ready-made Unicode characters, not a CSS transform or an image |
When it misleads you
- Cyrillic letters have no widely supported upside-down Unicode look-alikes — they pass through the tool unchanged and, in the flipped text, will read normally instead of upside down.
- Not every Latin uppercase letter has a truly accurate "flipped" character — some (H, I, N, O, S, X, Z, for example) visually match their normal form, while others use characters borrowed from adjacent alphabets (∀, Ǝ, Ʞ) that only approximate the flipped original depending on the font used.
- How the flipped characters render depends on the reader's device font — if the font doesn't include the needed glyph, a letter can show up as a blank box ("tofu") or a similar-but-not-identical character.
- Most punctuation marks (colon, semicolon, hyphen, slash and others not in the specific list) have no flipped counterpart and pass through as-is.
How it is calculated
Every character of the input is checked against a pre-built lookup table of "regular character → flipped Unicode look-alike" pairs.
If a match is found, the character is replaced with it; if not (Cyrillic, most punctuation, characters outside the table), the character is left unchanged.
After every character is substituted, their order in the string is reversed — this is needed so that, when the text is physically flipped 180 degrees, the letters run in the correct left-to-right sequence.
The result updates live as you type, with no separate run button.
Questions and answers
Why doesn't Cyrillic get flipped?
Cyrillic letters have no commonly agreed-upon flipped Unicode look-alikes, so they pass through the tool unchanged.
Why do some capital letters look the same as usual?
Symmetric letters like H, I, N, O, S, X, Z look visually identical to their flipped version, so nothing changes for them — that's expected.
Why does the text look different or show blank boxes on another device?
Some flipped characters are rare Unicode glyphs that aren't in every font. If the reader's device lacks a matching font, some characters can render incorrectly.
Is my text sent anywhere?
No, all the processing runs in your browser.