BLAST Ring Image Generator Icon

BLAST Ring Image Generator

3.8 Stars (8)
233 Downloads (This Week)
Last Update:
Browse All Files



BRIG is a cross-platform (Windows/Mac/Unix) application that can display circular comparisons between a large number of genomes, with a focus on handling genome assembly data.

Please cite the BRIG paper if BRIG is used to generate figures for publications: NF Alikhan, NK Petty, NL Ben Zakour, SA Beatson (2011) BLAST Ring Image Generator (BRIG): simple prokaryote genome comparisons, BMC Genomics, 12:402. PMID: 21824423

BLAST Ring Image Generator Web Site


  • Images show similarity between a central reference sequence and other sequences as concentric rings.
  • BRIG will perform all BLAST comparisons and file parsing automatically via a simple GUI.
  • Contig boundaries and read coverage can be displayed for draft genomes; customized graphs and annotations can be displayed.
  • Using a user-defined set of genes as input, BRIG can display gene presence, absence, truncation or sequence variation in a set of complete genomes, draft genomes or even raw, unassembled sequence data.
  • BRIG also accepts SAM-formatted read-mapping files enabling genomic regions present in unassembled sequence data from multiple samples to be compared simultaneously


User Ratings

ease 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5 3 / 5
features 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5 4 / 5
design 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5 3 / 5
support 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5 2 / 5
Write a Review

User Reviews

  • 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5

    so since I'm not allowed to write a ticket, I'm writing a review. I have a HUGE trouble using brig. the creation of multiple rings never work, I always have some missing, when I try to show my genomes one ring at a time, sometimes it works, sometime not, it seems quite random as the same strain will work at time t and not work at time t+1. There is no error message. It seems the software is just printing the rings just when it feels like it... As I see that there doesn't seem to be any support for this tool anymore (last update 2013, last reply to a user's request 2011...) does anybody has any suggestion of another software that might do similar plots ?

    Posted 06/27/2016
  • 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5

    Always notice: contains a space. Invalid filename Could someone help me to solve this problem?

    Posted 06/16/2016
  • 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5

    I identified a bug, but could not fill out a bug report. If the files have the same name, but are in different folders, only the last file is used to generate the rings. Eg. If folderA/file.fa and folderB/file.fa are used to generate two rings, BRIG results will show two rings corresponding to folderB/file.fa. Otherwise, I think it's a pretty good tool. It would be nice if it was more compatible with support vector graphics programs for post-editting.

    Posted 05/02/2016
  • 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5

    Hi I can't seem to create one of the trackers? I want to ask for support in using the program BRIG. I am new to the program but despite getting though to the configuration confirmation and the BLAST run finishing I am unable to find the image file that is supposed to be produced. All I find in the output file is the scratch folder containing .tab and .xml files (no JPEG or PNG files). I would be really grateful to have some help on the subject. Thank you Roseina

    Posted 04/18/2015
  • 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5

    A good program but when i use my own data not example it show error please guide me. Please let me know how can i get graph file . Thanks

    Posted 09/06/2014
Read more reviews

Additional Project Details

Intended Audience


Programming Language




Thanks for helping keep SourceForge clean.

Screenshot instructions:
Red Hat Linux   Ubuntu

Click URL instructions:
Right-click on ad, choose "Copy Link", then paste here →
(This may not be possible with some types of ads)

More information about our ad policies

Briefly describe the problem (required):

Upload screenshot of ad (required):
Select a file, or drag & drop file here.

Please provide the ad click URL, if possible:

Get latest updates about Open Source Projects, Conferences and News.

Sign up for the SourceForge newsletter:

No, thanks