Figuring out what kind of file a particular file extension is referring to can be impossible without some kind of reference. There are literally thousands of different file extensions out there and you need more information on what kind of file it is before you can use it.
May/June 2013 Update: I'm currently populating the folders below so if you find any obvious omissions, that's probably why.
Browse through the alphabetical listings below to locate the file extension you need help with. Let me know if you find anything that needs added or updated.
- ! (0)
- 0-9 (124)
- A (373)
- B (298)
- C (432)
- D (416)
- E (262)
- F (306)
- G (3)
- H (257)
- I (106)
- J (2)
- K (1)
- L (101)
- M (129)
- N (1)
- O (86)
- P (34)
- Q (0)
- R (17)
- S (168)
- T (9)
- U (0)
- V (0)
- W (7)
- X (272)
- Y (0)
- Z (3)
Free File Converter Software and Online Services
A list of freeware file converters for video files, image/graphic files, document files, and more.
Free Image Converter Software Programs
A list of free image/graphic converter software tools.
Free Video Converter Software Programs
List of free programs and online services that convert one type of video file to another.
Free Audio Converter Software Programs
A list of free audio converter software.
Free Document Converter Software
A list of document converter programs, tools that can convert one kind of document file into another.
Free Converter Programs for Other File Types
Lots of file types exist that aren't video, audio, image, or document based. These programs tackle the converting of some of these kinds of files.
List of Executable File Extensions
An incomplete list of executable file extensions.
My review of YouConvertIt, a free file converter online service.
My review of Zamzar, a free file converter online service.