Free WhatsApp Tool
Who Texted Last? Inactivity & Gap Tracker
Discover who sent the last message, calculate elapsed silence duration, measure reply latencies, and pinpoint historical conversation gaps.
100% client-side · Zero server upload · Free & open source
Drop your WhatsApp chat export here
Accepts exported .txt or .zip chat files
Beyond Basic Inactivity
You're Seeing Only 1% of Your Chat Data
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
Methodology & Precision
How Inactivity & Turn-Taking Are Measured
Unlike WhatsApp's basic online status, exported chat logs provide millisecond-accurate conversation history.
Millisecond-Accurate Silence
Elapsed time is calculated from the final message timestamp down to the minute, differentiating active exchanges from historical dormancies.
Turn-Taking Response Latency
Average reply speed is measured specifically when participants respond to each other, filtering out natural day-long pauses.
6-Hour Conversation Gaps
Silences exceeding 6 hours are classified as conversation breaks to determine who consistently revives and initiates chats.
Step-by-Step Guide
How to Export Your WhatsApp Chat
- 1
Open Chat in WhatsApp
Open any 1-on-1 or group chat on iOS or Android and tap the contact or group name at the top.
- 2
Export Chat Without Media
Scroll to the bottom, select 'Export Chat', and choose 'Without Media' for instant processing.
- 3
Drop File in the Tracker
Drop the generated .txt or .zip file into the dropzone above to view inactivity metrics immediately.
Frequently Asked Questions
Can I see who sent the last message in a group chat?
Yes. The inactivity tool lists every participant alongside their specific last message timestamp, making it easy to see who went silent first and who holds the last word.
Is my chat data uploaded or saved anywhere?
No. All parsing and metric calculations execute purely in your browser's local memory. No chat text or metadata ever leaves your device.
What defines a 'Silence Gap' or conversation break?
A silence gap occurs when more than 6 hours pass between two consecutive messages. The longest gaps represent historical periods of dormancy.
Does this work with both Android and iOS exports?
Yes. The parser supports all WhatsApp date and timestamp conventions across iOS, Android, and WhatsApp Web exports.
Ready to Check Your Chat's Inactivity?
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.