Aard 2
August 1, 2025•309 words
Aard 2
Android app for Offline Dictionaries and Wikipedia
Aard 2 official website:
• https://aarddict.org/
🔘 Aard 2 android apk:
https://ftp.halifax.rwth-aachen.de/aarddict/aardsoftware/aard2-android-0.58.apk
Dictionaries and Wiki:
https://github.com/itkach/slob/wiki/Dictionaries
https://ftp.halifax.rwth-aachen.de/aarddict/
Thanithamizh Akarathi Kalanjiyam
தனித் தமிழகராதிக் களஞ்சியம்
https://thanithamizhakarathikalanjiyam.github.io/tag/அகராதிகள்
Wiki Tamil:
https://ftp.halifax.rwth-aachen.de/aarddict/tawiki/
Sanskrit Dictionaries
Sanskrit dictionaries in slob format
https://github.com/chchch/SanskritDictionaries
DiccConsPrep
Dictionary of Spanish Prepositional Constructions, available in StarDict, Aard2/slob, and JSON formats.
https://github.com/doozan/DiccConsPrep
webster-unabridged-dict
Random House Webster's Unabridged Dictionary to DICT and slob formats.
https://github.com/Layerex/webster-unabridged-dict
Webster's 1913 Dictionary in Slob Format
https://github.com/wwlorey/webster1913
ozhegov-dict
Словарь Ожегова в форматах DICT и slob.
https://github.com/Layerex/ozhegov-dict
Longman
https://cloud.freemdict.com/index.php/s/BswTyKNX3sCbN5T
LDOCE6aard2audio_repack.slob
https://drive.google.com/file/d/1oIWYNRW9gnPuYtPGucS0C9m492sNAhxC/edit
Useful dictionaries
- Princeton: wordnet-3.1
- open-english-wordnet-2022
- Wiktionaries and Wikipedia
- Freedict
- TTAK
- Tamil Lexicon Decorated
All files are in .slob
format
File name ended with .slob
How to install:
https://youtu.be/cenc5hfZ-nI?feature=shared
Forum:
https://groups.google.com/g/aarddict
PyGlossary
A tool for converting dictionary files aka glossaries. Mainly to help use our offline glossaries in any Open Source dictionary we like on any modern operating system / device.
https://github.com/ilius/pyglossary
Convert documentation from DevDocs to offline Slob dictionaries.
https://codeberg.org/konstruktiv/docs2slob
Aard2 (or Aard 2) is an offline dictionary and Wikipedia reader.
📖 Purpose: Lets you read large dictionaries/encyclopedias without internet.
💾 Format: Uses .slob
(Sorted List Of Blobs) files — compressed databases for text/images.
🔍 Features:
• Fast full-text search
• Multiple dictionaries at once
• Works fully offline (no ads, no tracking)
📱 Platform: Android (apps like Aard 2 Dictionary, Simple Dictionary).
🌍 Content: Often used with offline dumps of Wikipedia, Wiktionary, Wikisource, and other dictionary/encyclopedia projects converted to .slob
.
🛠️ Conversion:
You can convert other dictionary formats into .slob
using PyGlossary (FOSS dictionary converter).
Example command:
pyglossary input_file.dict output_file.slob
👉 Summary:
- aard2 = the reader software
- .slob = the data files it reads (like offline Wikipedia or dictionaries)
- pyglossary = tool to convert other dictionary formats into
.slob