Microsatellite repeats finder - Online Bioinformatic Tools
Sequence:

Length of repeated sequence: Minimum:   Maximum:
Minimum number of repeats:
Minimum length of tanden repeat:
Allowed percentaje of mismatches:

Definitions
Microsatellite Repeat:
A variety of simple di- (DINUCLEOTIDE REPEATS), tri- (TRINUCLEOTIDE REPEATS), tetra-, and pentanucleotide tandem repeats (usually less than 100 bases long).

Tandem repeats:
Copies of DNA sequences which lie adjacent to each other

NOTE: for short repeate sequences (i.e. AA or AAA), no mismatches are available.