Yes, completely free with no signup required.

Does my data leave my device?

No. Everything runs in your browser — nothing is sent to any server.

Does it work on mobile?

Yes. The tool is mobile-first and works on any modern browser including iOS Safari and Android Chrome.

完整 ASCII 字元表,含十進位、十六進位、八進位、二進位與 HTML 實體值,點擊複製。

Dec	Hex	Oct	Bin	Char	Description	HTML Entity

Click any row to copy the character (or HTML entity for control characters).

Scroll the table to find any ASCII character, or type in the search box to filter by character or description.
Click any row to copy that character to your clipboard (HTML entity for non-printable control characters).
Use the Dec, Hex, and Bin columns to convert between representations.

Is this tool free?: Yes, completely free with no signup required.
Does my data leave my device?: No. Everything runs in your browser — nothing is sent to any server.
Does it work on mobile?: Yes. The tool is mobile-first and works on any modern browser including iOS Safari and Android Chrome.

Last updated: 2026-05-20 By jarvisbox