無料オンライン文字カウンター

Twitter counts most characters as 1, but URLs are always counted as 23 characters regardless of actual length (t.co shortening). Emoji count as 2 characters on some platforms. The tool reflects standard character counting.

A standard SMS is 160 GSM-7 characters. If you use Unicode characters (emoji, accented letters, non-Latin scripts), the limit drops to 70 characters per segment. Multi-part SMS stitches segments together.

For ASCII characters (standard English letters, numbers, common symbols), 1 character = 1 byte. UTF-8 Unicode characters (emoji, Chinese, Arabic) use 2–4 bytes each. The tool shows both character and byte counts.

Google typically displays 155–160 characters in search results, though it can show up to 920 pixels worth of text. Keep meta descriptions between 140–158 characters for best SERP display.

Yes. The counter works with all Unicode text including Chinese, Arabic, Japanese, Cyrillic, and emoji. Character count is in Unicode code points; byte count reflects actual file size.

Yes, the 文字カウンター on Allio Tools is completely free with no sign-up or registration required. It works directly in your browser.

オプションの制限追跡付きでリアルタイムに文字をカウントします。 No data is sent to a server — everything runs locally in your browser for maximum privacy and speed.

No installation needed. The 文字カウンター runs entirely in your web browser on any device — desktop, tablet, or mobile.

Completely safe. The 文字カウンター processes everything locally in your browser. No input data, results, or usage information is ever transmitted to or stored on any server.

After the page loads for the first time, the 文字カウンター works without an internet connection for all client-side processing. Tools that fetch live external data (such as DNS or network lookups) require an active connection.

The 文字カウンター has no hard character limit — it processes text as large as your browser can handle, typically hundreds of thousands of characters. Very large inputs may be slower depending on your device.

Yes. The 文字カウンター handles all Unicode text correctly, including accented characters, CJK characters, Arabic, Cyrillic, and emoji. It works with any language that your browser renders, with no additional setup or language packs required.

Yes. The 文字カウンター is built with standard browser APIs and works on all modern browsers including Chrome, Firefox, Safari, and Edge — on both desktop and mobile. No plugins, extensions, or third-party software are required.

Select and copy the result text to paste into any document or app. For image tools, a Download button saves the file directly to your device. Your browser's built-in screenshot function also captures results quickly. No account or login is required.