All-Star Puzzles' Cryptograms
Daily problems with browser based solver. The author's name is hidden in the cipher alphabet. [Requires Java]
American Cryptogram Association: Crypto Drop Box
Sample journal issue, links to member homepages, subject-related graphics, subscription information, and resources.
Between Waters
Daily problems and solutions available with or without interactive browser-based solver.
Copycreate.com Cryptoquote/Cryptogram
Daily cryptoquotes, and archive. Has browser-based helper form.
CRpuzzles
Collection with browser-based solver tool. Includes hints. After deciphering the hidden quotation, solvers must derive the author's name from the cipher-quote letter pairs to complete their puzzle task. [Requires Java]
CryptaGram
Offers download of limited version solver software. Extended version available for purchase. Has 14 quote topics, three levels of difficulty, and helpers. [Windows 95/98]
Cryptagram
Cryptagram is a Windows version of CryptoQuote and WordSearch. It is availible in a freeware and an extended version.
Cryptic Quoter
Functional online cryptogram machine and solver. Has wof and buster extra features.
Crypto Challenge
Free Windows-based software for solving. Uses quotations, humorous sayings, and scriptures. Extras available for a nominal charge. Includes screen shots. Keeps track of which letters are in play. Counts the frequency of each letter. Word lookup table.
Crypto Daily
Delivered via email. Also has advice on how to solve.
CryptoChallenge
A series of puzzles to solve. Has an encrypted sentence for each level. When it receives the decrypted answer it goes to another page with another encrypted message in a more advanced level.
Cryptogram Corner
Daily puzzles and past archive. Has links to other subject related sites.
Cryptogram Solver Source Code
Source code archive with several programs to automatically solve puzzles. Also includes "crypo-quote" of the day.
Cryptogrammaton
Ancient Greek mythological themes. Solutions listed separately, along with stories about the mythical characters in the puzzle.
Cryptograms Weekly
Weekly puzzles for printing and solving along with the solutions. Also offers a magazine and an online store.
Cryptographs
Puzzles featuring a portrait of a famous person and an encrypted quotation of its source or subject.
Edgar Allan Poe Crypto Challenge
Historical background, contest details, and solution for the 157 year-old cryptograph which may have been written by Edgar Allan Poe.
Literary Cryptograms
Collection based on literary passages, both general and with specific sets from William Cowper, Jane Austen's Persuasion, Plato's Phaedrus. Includes browser-based solution and solving instructions.
OneAcross - Cryptograms
Solving tool through web browser. Allows entry of a phrase, or selection from "easy, medium, or hard" quotations taken from the Linux fortune collection. Also features the ability to send cryptogram-encoded messages via email.
Professor Payne's World of Cryptograms
Interactive browser-based solver. Also contains program to generate cryptograms from a user-submitted quotation.
Puzz.com: Cryptograms
Ten problems with solutions taken from famous sayings, adages, and proverbs. By William F. Bultas.
RuneQuest Challenge
A multi-layered cipher puzzle using lore themes with cash prizes for various checkpoints and the final solution. In order to be eligible for the prizes, a solver must register their name/address/email and pay a registration fee. Registered people will get some additional helpful clues.