Japality Genomics Viewer

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About this app

JGV (Japality Genomics Viewer) is a genome browser for Android. Open a FASTA on your phone, then add the tracks you already have. Files are copied into app storage and processed on the device. Japality does not upload your FASTA or BAM to our servers.

How to start
• Open FASTA (.fa / .fasta / .fna). A .fai index is built on the device if you do not already have one.
• Add tracks from Add, or pick the FASTA and tracks together with Open files.
• Pan and pinch a locus. Save a small JSON session of the locus and tracks to reopen later on the same device.

Supported files
• Genome: .fa .fasta .fna (+ .fai)
• Genes / features: .gff .gff3 .gtf .bed
• Alignments: .bam (+ .bai) .cram (+ .crai)
• Variants: .vcf
• Signal: .bw .bigwig
• Contacts: .bedpe
• Session: .json

Gzip (.gz) is not supported in this version. Open uncompressed files.

JGV is a viewer for genomic files you already keep on the device. It is not a diagnostic or clinical tool.

The free app may show ads.

Japality Limited (Hong Kong)
https://app.japality.com/jgv/a/marketing
japalitylimited@gmail.com
Privacy policy: https://app.japality.com/jgv/a/privacy_policy/
On-device genome browser. Open FASTA, then add GFF, BAM, BED and BigWig.
Updated on
Aug 19, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
  • This app may share these data types with third parties
    Location, App activity and 2 others
  • This app may collect these data types
    Location, App activity and 2 others
  • Data is encrypted in transit
  • Data can’t be deleted
Content rating
Everyone
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App support

About the developer
Japality Limited
japalitylimited@gmail.com
Rm 29-33 5/F BEVERLEY COML CTR 87-105 CHATHAM RD 尖沙咀 九龍 Hong Kong
+852 7072 0614

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