Dev tools · alternatives · 2026
24 alternatives to Invisible Character Viewer
Detect and identify hidden unicode in text strings
Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Invisible Character Viewer launched in 2024; newer entries below may have overtaken it.
- 1

Replace scary zero-width characters with funny emojis - elchiapp/zero-width-chrome-extension
2018 · github.com · its alternatives →
- 2

A Chrome extension to detect, highlight, and sanitize text with zero-width characters. - roymckenzie/detect-zero-width-characters-chrome-extension
2018 · github.com · its alternatives →
- 3

Detect any language by just copy pasting the text
2023 · moxby.com · its alternatives →
- 4

Fast and efficient text recognition from any image and PDF
2019 · apps.microsoft.com · its alternatives →
- 5

I made a free tool that stuns LLMs with invisible Unicode characters. *Use cases:* Anti-plagiarism, text obfuscation against LLM scrapers, or just for fun! Even just one word's worth of “gibberified” text is enough to block most LLMs from responding coherently.
Nov 2025 · gibberifier.com · its alternatives →
- 6UL
2021 · unicode.emnudge.dev · its alternatives →
- 7PT
Hi, OP here. A friend was involved in a custody battle and was afraid his ex was going to leak all of his discovery documents on the internet and he asked if there was something I could do to make it harder for bots/crawlers to find sensitive information. Originally I was going to turn all of his docs to image based PDFs, but those get large fast and are easy to OCR. So I found a post musing about altering fonts/glyphs so that it looks like english, but the actual character being seen by the pdf reader is a non-english character. As such, when you try to OCR these files, it doesn't…
2022 · humaneyesonly.com · its alternatives →
- 8
What Font Is▲353Find any font from any image (commercial or free)-WhatFontIs
2019 · whatfontis.com · its alternatives →
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Fonts Ninja▲247Try fonts discovered on websites in any design software
2019 · fonts.ninja · its alternatives →
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Textify▲202macOS app to recognize text from your images/docs with OCR
2020 · apps.apple.com · its alternatives →
- 13

Identify and bookmark fonts from any website
2020 · chromewebstore.google.com · its alternatives →
- 14USunicode.style▲125
2018 · unicode.style · its alternatives →
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Find and clean hidden text artifacts without rewriting
Aug 2026 · aitextwatermark.com · its alternatives →
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What The Font is the best free font identifier tool. Upload any image and instantly discover what font is this. Identify fonts from images with our powerful AI technology. Download What The Font today!
2025 · whatthefont.app · its alternatives →
- 22
WhatFont▲127The easiest way to identify fonts on web pages.
2014 · chromewebstore.google.com · its alternatives →
- 23

I built a demo of two Unicode steganography techniques, zero-width characters and homoglyph substitution, in the context of AI misalignment. The first is about the use of two invisible zero-width characters (ZWS and ZWNJ) to binary encode text. The second is much cooler. Most characters in the Latin and Cyrillic alphabets look nearly identical, but have different unicode. If you have text to encode and convert it into binary representation (1s and 0s), you could take plain english "carrier" text and for each 1 in the binary representation you could substitute the Cyrillic letter equivalent.…
Apr 2026 · steganography.patrickvuscan.com · its alternatives →
- 24

Also compare
- I made a Chrome extension to reveal zero-width characters alternatives
- I also created a Chrome Ext that reveals use of zero-width characters alternatives
- Free Language Detector alternatives
- OCR Text Detection Tool alternatives
- Stun LLMs with thousands of invisible Unicode characters alternatives
- Unicode Lookup – A fast, simple, and quick Unicode lookup tool alternatives
Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →