A Public Notebook

Small crystals of information. Last edit: 2026-02-07.

The page directory

• A-series paper sizes
• ASCII tables
• ASCII listed in binary
• ASCII only: all the 95 printable ASCII characters, on one line
• Arrows, copypasteable
• adventures in cobol, part 1 ; part 2
• Baudot/ITA-2 table
• Code Page 437
• Code Page 850
• ISO 8859-1, or Windows-1252 (and only them, on a couple of lines)
• Code snippets
• CSS colour list • sorted by color
• Creating a dynamically linked shared library on Linux with GCC
• All 4096 twelve-bit #RGB colors
• FFmpeg examples
• Fullwidth Forms
• Kill James Bond SCUM system scores
• HTML named entities (on one row) (just the math bits)
• Minecraft longhouse
• Minecraft wool blocks when on a map
• Minecraft sponge/water draining strategies
• Minecraft, Wayland, and scaling
• Morse code list
• My miscellaneous notes on x86-64 assembly
• Preferred Dwarf Fortress conf changes
• Regular expressions to fix OCR'd subtitles with
• String generator
• Ubuntu default terminal colors
• UTF-8 decoding code (and in table form)
• X-Sampa
• Wordle word list, 12966 words
• Le Mot (French Wordle) word list, 6227 words
• Miniature 2x2 Farbfeld image as a hexdump, for testing or whatever

Math and numbers:

• First 10,000 primes, enumerated
• Prime number decompositions of all integers between 1 and 10000
• Some rules of boolean logic, summarized
• 256÷255 division/modulo table (big, slow) (zoomed-out screenshot)
• Numbers divisible by 4 ; Numbers divisible by 16

Tools:

• Arvelie date decoder and calculator
• Atbash cipher (like ROT13, but different)
• Base64 decoding tool
• Character counting service
• Clock
• Color picker, simple
• Dashword: replace non-word characters with dashes, for filenames and urls
• Dice roller
• D&D money converter
• Filter36: remove anything that isn't [A-Z0-9]
• HTML escape: escape non-basic-ASCII characters with &#x-notation.
• Insert soft hyphens in text; replace _ with ­
• Insert zero-width non-joiners in text; replace _ with ‌
• Insert zero-width spaces in text; replace _ with the Unicode equivalent of <wbr>
• JS escape: escape non-basic-ASCII characters with \u-notation
• Letters-to-numbers converter, 1-26
• Letters-to-numbers converter, 10-35
• Listword: enumerate words, sort words.
• lowercaseifier
• Naïve transliterators
• No-sleep: prevent your screen from going to sleep
• Nothing: just write text on a webpage (null editor)
• Reverse trans­literators
• Remove Wikipedia citations^[1] from a copypasted snippet^[2]
• ROT-13
• Quoted-printable decoding tool
• Seconds-to-HH:MM:SS calculator
• Sort input characters (aaccehinoprrrsstttu)
• Sort input words' characters (orst inptu 'dorsw aaccehrrst)
• Virtual keyboard
• Unicode code point lister and normalizer
• Unicode code point lister, but in decimal (and the reverse operation: decode a list of decimal numbers into a unicode string)
• Unix time decoder
• UPPERCASEIFIER
• URI-encoding decoder and encoder

Script reference pages:

• Arabic
• Devanagari
• Hangul (Korean)
• Hebrew
• Jōyō kanji, all of them and only them (sorted by code point)
• Kana tables
• Unihan character database: character readings and definitions. A large page, will take some time to load; 3 MB, a 20935-row table. (Compat, CompatSupplement, Ext-A, Ext-B, Ext-C, Ext-D, Ext-E, Ext-F, Ext-G)

Small online toys and whimsy

• A page written with only HTML decimal entities
• 1-dimensional random walks
• 144 random letters
• Generator of strings
• Images received in spam emails
• Letter substitutions: K→C, W→VV, V→W, J→I, U→V, \↔/.
• Looping color bar video
• Remove all instances of AEIOU. Also: a version that also removes Y. Also: a tool that adds a symbol at the start of every word that begins with one of those letters.
• Lookalikes: ɾɛρlɑсе lɛtтɛrs ωıtɦ lооκаlιkеs ιɴ dıſfеɾenт ѕcɾірtѕ
• Toki Pona word generator
• One type of fantasy name generator
• Kaomoji shrug ¯\_(ツ)_/¯
• Novel generator based on the Diceware word list
• Spinning multicoloured cube
• The scream cipher from xkcd #3054
• Vertical text test page
• WebP compression tests

Bits and pieces

-o "customtitle_%(id)s.%(ext)s"
-o "%(uploader)s %(title)s [%(id)s].%(ext)s"
-o '%(title)s [%(id)s %(upload_date)s %(uploader)s].%(ext)

ls -l | awk '{ total += $5 }; END { print total }'

?useskin=vector

⚠ under construction forever ⚠️