EU Tachograph Analysis for Drivers and Fleets
TachoChart is a free tachograph analyzer for EU digital tachograph (.ddd) files. Upload driver card or vehicle unit data to review driving time, rest periods, and compliance risks.
Tachograph Compliance Checklist
- Daily and weekly driving limits under EU 561/2006
- Breaks after 4.5 hours and daily rest rules
- Weekly rest and fortnightly driving totals
- Infringements flagged with severity ratings
What You'll Get From Your Analysis
View driver name, card number, and the complete data period covered by your file.
Total hours for driving, other work, availability (standby), and rest periods at a glance.
Day-by-day activity analysis showing exactly how time was spent each working day.
List of all vehicles used during the period with registration numbers and usage dates.
Automatic detection of EU Regulation 561/2006 violations with severity ratings.
Analysis completes in seconds - no waiting, no email, results shown immediately.
How It Works
Choose your driver card or vehicle unit file. The file stays on this page only.
We calculate driving, work, availability, rest, and detect infringements.
Get a clear summary, daily breakdown, and compliance notes.
Why It Is Useful
- Check compliance before an inspection.
- Spot risky patterns early and adjust schedules.
- Share a clean summary with drivers or managers.
- No accounts, no cookies, no data storage.
About TachoChart
TachoChart is a free, privacy-focused tool for analyzing EU digital tachograph data files (.ddd). Upload your driver card or vehicle unit data to get instant insights into driving times, rest periods, and potential infringements.
Supported File Types
- Driver Card files - Contains up to 28 days of driver activity data
- Vehicle Unit (VU) files - Data downloaded directly from the tachograph unit
- Company Card files - Fleet management and company lock data
- Workshop Card files - Calibration and technical inspection records
EU Regulations Covered
TachoChart analyzes your data against EU Regulation (EC) No 561/2006, which sets the rules for:
- Maximum daily driving time (9 hours, extendable to 10 hours twice per week)
- Maximum weekly driving time (56 hours)
- Maximum fortnightly driving time (90 hours)
- Required breaks (45 minutes after 4.5 hours of driving)
- Daily rest periods (11 hours, reducible to 9 hours three times per week)
- Weekly rest periods (45 hours, reducible to 24 hours every second week)
Privacy & GDPR Compliance
- Your raw .ddd file is NEVER stored on our servers
- Files are deleted immediately after analysis completes
- No cookies, sessions, or user accounts required
- No tracking or analytics on individual users
- Optional anonymized statistics contain no personal identifiers
- All processing happens in memory - nothing written to disk
Who Is This For?
- Truck and bus drivers wanting to check their own records
- Fleet managers monitoring driver compliance
- Transport companies preparing for audits
- Anyone needing a quick and private .ddd analysis
Tachograph Glossary
- Tachograph - The in-vehicle device that records driving time, speed, and activity.
- Driver card - Personal card that stores driver activity data.
- Vehicle unit (VU) - The tachograph head unit installed in the vehicle.
- .ddd file - Standard EU digital tachograph download file.
- Infringement - A breach of EU driving time rules.
- Availability - Time on standby or waiting.
- Rest - Breaks and daily/weekly rest periods.
FAQ
What is a .ddd file?
.ddd files are digital tachograph data files used across the EU. They contain detailed information about driving time, rest time, speeds, and events. These files can be generated from driver cards or vehicle unit downloads.
How do I get my .ddd file?
Driver card data can be downloaded using a card reader and appropriate software. Vehicle unit data is typically downloaded by fleet managers or at service stations with specialized download equipment.
Is my data safe?
Yes. Your file is processed entirely in memory and is never saved to disk. Once the analysis is complete and the results are displayed, the original file data is immediately discarded.
What infringements are detected?
TachoChart detects violations of EU driving time regulations including exceeded driving times, insufficient breaks, and inadequate daily and weekly rest periods.