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What it does
A complete, searchable reference for all 128 ASCII code points (0-127), rendered as a plain-text table you can copy or download. Every row shows the decimal, hexadecimal, octal, and 8-bit binary form alongside the display glyph and human name; control characters (0-31 and 127) carry their control-picture glyph and C-style escape sequence (\n, \t, \r, …). Type to search across every field, toggle to printable-only, clamp the code-point range — the table on the right regenerates live and lands in your clipboard or a ascii-table.txt file exactly as shown. Everything runs 100% client-side.
How to use it
- Search - start typing in the search box. Your query matches the decimal, hex, octal, binary, name, character, or escape (try
0x41,Line Feed,\n, orA), or tap a Try: chip (0x41,\n,Delete,Digit) for a one-click lookup. - Filter - toggle All 128 / Printable to show or hide the 33 control characters; set Min / Max to narrow the decimal range (e.g. 48-57 for the digits). The header badge tracks how many of the 128 rows are shown.
- Copy or download - Copy table puts the exact plain-text table on your clipboard (great for READMEs, issues, and terminals); Download saves the same text as
ascii-table.txt. - Share - the query, view, and range live in the URL. Use Copy share link to send someone the exact view.
Examples
Search by hex 0x41 - one row:
Dec Hex Oct Binary Char Name
--- ---- --- -------- ---- -----------
65 0x41 101 01000001 A Uppercase ASearch by escape sequence \n - one row:
Dec Hex Oct Binary Char Name
--- ---- --- -------- ---- -------------------
10 0x0A 012 00001010 ␊ Line Feed (LF) · \nRange Min 48, Max 57 - the ten digits:
Dec Hex Oct Binary Char Name
--- ---- --- -------- ---- -------
48 0x30 060 00110000 0 Digit 0
49 0x31 061 00110001 1 Digit 1
50 0x32 062 00110010 2 Digit 2
51 0x33 063 00110011 3 Digit 3
52 0x34 064 00110100 4 Digit 4
53 0x35 065 00110101 5 Digit 5
54 0x36 066 00110110 6 Digit 6
55 0x37 067 00110111 7 Digit 7
56 0x38 070 00111000 8 Digit 8
57 0x39 071 00111001 9 Digit 9Printable view - 95 rows (code points 32-126), control characters hidden. First rows:
Dec Hex Oct Binary Char Name
--- ---- --- -------- ---- ----------------
32 0x20 040 00100000 ␣ Space
33 0x21 041 00100001 ! Exclamation mark
34 0x22 042 00100010 " Quotation mark
35 0x23 043 00100011 # Number sign
36 0x24 044 00100100 $ Dollar sign
37 0x25 045 00100101 % Percent sign
38 0x26 046 00100110 & AmpersandGood to know
- Control vs. printable follows the standard split: 0-31 and 127 are control characters; 32 (space) through 126 (
~) are printable. Space renders as␣so it stays visible in the text table; controls 0-31 show their control-picture glyphs (␀for NUL,␡for DEL). - Hex / octal / binary are zero-padded to a fixed width (
0x41,101,01000001) so the columns line up and are easy to compare. - Escape sequences (
\0,\a,\b,\t,\n,\v,\f,\r,\e) are shown after the name for the control characters that have a common C-style escape; the rest list only their name. - The text is the artifact - what you copy or download is byte-for-byte what the panel shows, with the name column sized to the widest row in the current view.
- Shareable: the search query (
q), view (view=printable), and range (min,max) are all encoded in the URL. - Private: the table is generated locally - nothing is sent anywhere.
- Related tools: Markdown Table Generator, Statistics Calculator, Semver Checker.