Avifkit vs Mass Rename

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

Avifkit compared with Mass Rename
Detail	Avifkit	Mass Rename
What it does	Secure client-side AVIF converter for privacy and speed	Batch rename files from a CSV or Excel mapping table without uploading them
Stage	Not given	Not given
Founded	Not given	Not given
Based in	Not given	Not given
Pricing model	Free	Freemium
Pricing	Not given	Free: rename up to 50 files per batch with all features. Lifetime licence: $19 USD one-time payment for unlimited files per batch.
Key features	Batch conversion of up to 30 files at once Adjustable quality slider from 10% to 100% Download individual files or as ZIP archive No registration, login, or watermarks required	Case-insensitive filename matching across CSV/XLSX files Preview all conflicts before renaming Download renamed files as ZIP Rename photos by EXIF date taken Support for CSV, TSV and Excel .xlsx formats In-place folder renaming for Chrome and Edge Generate rename scripts for Windows, Mac and Linux Handle files in subfolders without moving them Auto-numbering for duplicate filenames
What makes it different	All processing happens locally in your browser with zero server uploads for complete privacy Instant conversion with no upload time or waiting delays Free with no limits, registration, watermarks or tracking Compare original and converted images to see quality preservation	100% client-side processing—files never leave your browser or device No account, signup or installation required Works offline after the page loads Free tier with full features for up to 50 files per batch
Community votes	0	0
DR (Domain Rating by Ahrefs)	17 no change since last check	Not checked yet no change since last check
Trust Flow (Majestic)	13	0
Citation Flow (Majestic)	28	0
Referring domains (Majestic)	136	0

4 details filled in for both companies.

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