Free WhatsApp Tool
WhatsApp Peak Chat Hours & 24h Heatmap
Discover when your conversations come alive throughout the 24 hours of the day. Compare daytime vs nighttime messaging patterns.
100% client-side · Zero server upload · Free & open source
Drop your WhatsApp chat export here
Accepts exported .txt or .zip chat files
Beyond Activity Hours
Explore Full 365-Day Timelines & Response Speeds
WhatsAnalyze transforms your entire conversation into interactive charts, response metrics, and an annual Wrapped story. 100% private in your browser.
24h Activity Distribution
Find out when you talk the most — from morning coffee chats to late night conversations.
Emoji & Word Clouds
Discover which emojis and catchphrases define your conversation dynamic.
First Responder Dynamics
Detailed breakdown of who starts topics, double texts, and answers the fastest.
WhatsApp Wrapped Story
Turn your chat into an Instagram-story style retrospective to share with friends.
Instant transition · No re-upload required · Free
Step-by-Step Guide
How to Analyze Your Chat's Activity Hours
- 1
Export Your WhatsApp Chat
Open your chat, tap the contact or group name, choose 'Export Chat' and tap 'Without Media'.
- 2
Drop Your File Here
Drop the .txt or .zip file in the dropzone above. Timestamp breakdown occurs in milliseconds.
- 3
View 24h Heatmaps
Inspect your peak hours, day vs. night patterns, and discover who texts late into the night.
Frequently Asked Questions
How are daytime and nighttime hours defined?
Daytime is defined as 6:00 AM to 10:00 PM (06:00–21:59). Nighttime covers 10:00 PM to 6:00 AM (22:00–05:59).
Does the tool adjust for different time zones?
Timestamps in exported chat logs reflect the time zone of the device that created the export.
Can I see which participant texts the most at night?
Yes. The breakdown table details the exact daytime vs nighttime percentage for every participant.
Are timestamps or chat files sent to any server?
No. All calculation runs locally in your browser. No files or timestamps ever leave your device.
Ready to Discover Your Peak Chat Hours?
100% Private · Zero Server Upload · No Registration Required
WhatsAnalyze is an independent open-source project and is not affiliated with, endorsed by, or sponsored by WhatsApp or Meta.