Spell checker

Spell checker is available since FreeMind 1.0.0.

Spell checking works when one edits a node, whether a short plain text node, a long plain text node or a rich text (HTML) node. There is no way to systematically collect all spelling mistakes in a mind map other than editing a node one at a time.

Spell checking is enabled by default. It can be disabled in preferences on the tab Environment, option "Check spelling".

FreeMind uses JOrtho spell checking library for Java.

The author of the spell checking function for FreeMind is Eicke.

Dictionaries supplied

Dictionaries supplied by default:

• dictionary_de.ortho: German
• dictionary_en.ortho: English
• dictionary_es.ortho: Spanish
• dictionary_fr.ortho: French
• dictionary_nl.ortho: Dutch
• dictionary_ru.ortho: Russian

Links:

• master/tree/freemind, sourceforge.net -- directory in Git where the default dictionary files are stored

Development: Candidate spell checkers

Candidate spell checkers:

• JOrtho - hosted at SourceForge
  • Language: Java
  • Uses dictionaries based on Wiktionary => vastly incomplete
  • Used by Freeplane as well.
• Hunspell
  • Language: C++
  • Used by OpenOffice, Opera , Firefox and Google Chrome
  • For Java using JNI, JNA: Java API for Hunspell based on JNA; only a wrapper, not a Java port
• Jazzy - hosted at SourceForge
  • Language: Java
  • Used by eKit

Further open source spell checkers:

• GNU ASpell
• MySpell
• Ispell

Tracker items

• Feature request: Spell check is crucial
• Search Feature Requests tracker for "spell check"
• Enhanced Spell Checking, 2014-04-22 -- requests spell checking to take place without entering the edit mode

Forums

• Freeplane forum: Why JOrtho is not suitable, 2009-04-11 -- points out that JOrtho is in fact quite suitable, is in Java, and shows how to convert Aspell dictionaries to JOrtho format
• Add words to spell checking dictionary in Help forum, 2014-04-15, sourceforge.net

Links

• Spell checker at Wikipedia
• jortho project page, sourceforge.net -- JOrtho is the library used for spell checking
• freeplane/files/spell_check_dictionaries, sourceforge.net -- dictionaries for JOrtho created as part of Freeplane project, allegedly by being converted from aspell[1]; language codes included: af, am, ar, bg, bn, br, ca, cs, cy, da, de, el, en, eo, es, fa, fi, fo, fr, ga, gu, hi, hr, hy, is, it, ku, lv, ml, mr, nl, nr, ns, or, pa, pl, pt, ro, ru, sk, sl, ss, st, sv, ta, te, tl, tn, ts, uk, uz, xh, zu