ReactionTests vs Bulk File Rename

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

ReactionTests compared with Bulk File Rename
Detail	ReactionTests	Bulk File Rename
What it does	Test your visual reaction time for free	Free online tool to rename multiple files at once with live preview, no upload or installation required
Stage	Not given	Not given
Founded	Not given	Not given
Based in	Not given	Not given
Pricing model	Free	Free
Pricing	Not given	Not given
Key features	Five-round visual reaction test with millisecond timing Seven-round sound reaction time test Local result history with up to 300 sessions stored Consistency measurement showing standard deviation of scores Download score card as image Sound calibration for personal offset adjustment Reference data from published research studies	Live preview of all changes before download Automatic numbering that continues sequentially Smart find and replace with regex support Text case formatting in one click Duplicate name warnings before download Works on entire folders including subfolders Processes files locally in browser, no uploads Real image format conversion Rename from list using CSV or text files
What makes it different	No account or login required to use the test Results stored locally in browser for privacy Compare full sessions to understand consistency, not just fastest round Research-backed reference data from laboratory studies	Runs entirely in browser with no installation, accounts, or file uploads required Works on any device including phones and locked-down computers Live before-and-after preview with collision detection Open-source code available for inspection
Free plan	Not given	Not given
Open source	Not given	Not given
Platforms	Not given	Not given
Public API	Not given	Not given
Community votes	0	0
DR (Domain Rating by Ahrefs)	3 no change since last check	Not checked yet no change since last check
Trust Flow (Majestic)	0	0
Citation Flow (Majestic)	11	12
Referring domains (Majestic)	1	2

4 details filled in for both companies.

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