Tamil font Encoding Guide (2026)

Tamil font encoding explained simply — what ANSI fonts are, why TSCII failed, how Unicode solved everything. Beginner-friendly comparison with conversion steps included.

What is Character Encoding? A Simple Explanation

Tamil font encoding sounds technical, but the concept is surprisingly simple. Every time Tamil text has broken on your phone, or a document someone sent you showed up as gibberish instead of Tamil — that was an encoding mismatch. Once you understand this concept, you will know exactly where the problem is and how to fix it.

Every character you see on a computer screen — whether it is the letter “A” or the Tamil letter “க” — is stored internally as a number. Character encoding is the rulebook that defines which number represents which character.

Side-by-Side Comparison of All Tamil Encoding Systems

How to Convert Legacy Tamil Encoding to Unicode

If you have old Tamil text in Bamini, SaiIndira, Vanavil, or TSCII format, converting it to Unicode takes about 30 seconds.

How to Tell Which Encoding Your Tamil Text Uses

Before you can fix broken Tamil text, you need to know which encoding it is in. You do not need any software — the symptoms tell you almost immediately.

The 30-second test

Copy the text and paste it into a plain, font-neutral place: a browser address bar, a Google search box, a WhatsApp chat, or Google Docs. These use Unicode by default, so they strip away any custom font. Then look at what appears:

Why ANSI text looks like English gibberish

Remember the “lockers” analogy. An ANSI Tamil font puts Tamil shapes into the lockers that normally hold English letters. So the file actually stores English letters — the Tamil appearance only exists while that one font is applied. Strip the font (which any modern app does) and you are left with the raw English letters that were stored underneath. That string of nonsense English is the tell-tale sign of ANSI encoding.

How to Type Unicode Tamil on Any Device

Once you know Unicode is the only encoding worth using, the next question is how to actually type it. Every major platform now ships with Tamil input built in — no third-party font needed.

Android

Gboard (Google’s keyboard, pre-installed on most phones) supports Tamil. Go to Settings → Languages & input → add Tamil. You can choose between a phonetic layout (type “amma” and it suggests அம்மா), the Tamil99 layout, or the handwriting option. Everything you type is Unicode.

iPhone / iPad

Go to Settings → General → Keyboard → Keyboards → Add New Keyboard → Tamil. iOS offers both the Tamil99 layout and a phonetic (transliteration) layout. Switch to it with the globe key while typing.

Windows

Go to Settings → Time & Language → Language & region → Add a language → Tamil (India). Windows installs the Nirmala UI font and gives you the Tamil99 and phonetic keyboards. Switch layouts with Windows key + Spacebar.

Mac

Go to System Settings → Keyboard → Text Input → Edit → add a Tamil input source (Tamil99 or Tamil phonetic). Switch with the input menu in the menu bar.

Typing on the web

If you are on a shared or older computer, Google Input Tools and similar online Tamil keyboards let you type phonetically in the browser and copy the Unicode output. For styling that text afterwards, run it through the Tamil Font Style Generator.

Migrating a Legacy Tamil Website to Unicode (SEO Checklist)

If you run an older Tamil website built with Bamini, SaiIndira, or TSCII, there is a hidden cost: search engines cannot read a word of it. To Google, ANSI Tamil looks like meaningless English strings, so the pages never rank for Tamil queries. Migrating to Unicode is the single biggest SEO improvement such a site can make.

Why it matters for rankings

Google indexes the stored characters, not the visual appearance. A Bamini page that looks like perfect Tamil to a human is stored as gibberish English, so Google indexes gibberish. Converting the same content to Unicode lets Google finally read, index, and rank it in Tamil search results — often recovering traffic the site never knew it was losing.

Step-by-step migration checklist

1. Audit your content. Identify which pages use legacy encoding (use the 30-second paste test above on a few pages).
2. Convert the text. Run each block of legacy Tamil through a converter (Bamini/TSCII/SaiIndira → Unicode) and replace the old text with the Unicode output.
3. Set the page charset to UTF-8. Ensure every page has <meta charset="utf-8"> in the <head>. Modern WordPress and most CMSes already do this.
4. Declare the language. Add lang="ta" on Tamil pages (or on the Tamil sections) so search engines and screen readers know the content is Tamil.
5. Remove forced font files. Delete CSS that forces a Bamini/SaiIndira font — Unicode text should render with the device’s own Tamil font.
6. Keep URLs the same where possible. If a URL must change, add a 301 redirect from the old URL to the new one so you keep existing link value.
7. Update titles and meta descriptions to Unicode Tamil too — these are also indexed.
8. Resubmit your sitemap in Google Search Console and request re-indexing of the converted pages.
9. Verify. After a crawl, check Search Console’s coverage and search for a unique Tamil phrase from your page to confirm it now appears.

Which Encoding Should You Use in 2026?

One word: Unicode (UTF-8). Every modern phone, computer, browser, social media platform, and search engine supports Unicode Tamil. There is no practical reason to create new Tamil content in any other encoding.

Specifically:

• New websites → UTF-8 encoding (default on WordPress, most CMSes)
• Word documents → .docx format automatically uses Unicode
• Social media → Native Unicode support everywhere
• Mobile apps → Unicode is the only realistic option
• Legacy content → Convert to Unicode using the tool above

Glossary of Tamil Encoding Terms

Quick definitions of the terms used throughout this guide.

Character encoding

The rulebook that maps each character to a number so computers can store and exchange text.

Code point

The unique number assigned to a character in a standard. For Tamil “க” the Unicode code point is U+0B95.

ASCII

The original 128-character encoding for English letters, digits and punctuation — the foundation other encodings extended.

ANSI (extended ASCII)

Encodings that used the extra 128 positions (128–255) for other characters. Legacy Tamil fonts like Bamini work this way, which is why they are not portable.

TSCII

Tamil Script Code for Information Interchange — an early unified, documented Tamil standard, now obsolete after Unicode.

Unicode

The global standard that gives every character on earth its own permanent code point. Tamil lives in the block U+0B80–U+0BFF.

UTF-8

The most common way to store Unicode in files and send it over the web — used by the large majority of websites.

Glyph vs character

A character is the abstract letter (க); a glyph is one visual drawing of it. One character can have many glyphs across different fonts.

Vowel sign (matra)

A mark added to a consonant to change its vowel, e.g. the ா in கா. Unicode stores these separately and combines them with the base consonant.

Pulli

The dot (்) that removes the inherent vowel from a Tamil consonant, e.g. க் .

Aytham

The special Tamil character ஃ.

Frequently Asked Questions