gff-viewer

Interactive GFF/GTF annotation viewer with feature type coloring, attribute parsing, and region statistics.

Features

• Auto-detects GFF3 and GTF formats
• Feature type color coding (gene, mRNA, exon, CDS, etc.)
• Column header sorting (click to sort ascending/descending)
• Text search across all fields
• Chromosome and feature type dropdown filters
• Strand color coding (+ green, - red)
• Attributes column parsed as key=value pairs
• Computed region length column
• Summary statistics (feature count, chromosomes, feature type distribution)
• Pagination for large files (100 rows per page)

Supported Extensions

• .gff
• .gtf
• .gff3

Installation

Install from the Plugins tab in the AutoPipe desktop app.