Recorder X

A free online tool that logs events with timestamps, enables quick data capture, and exports structured records for analysis.

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100%

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4.9 / 5.0

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About This Tool

Recorder X is a structured data recorder designed for fast, repeatable logging of events, measurements, and observations.
It targets researchers, field technicians, quality engineers, and teams that require an auditable trail of activity.
Each record follows a simple schema: timestamp, event_type, value, unit, and optional notes or context. The tool supports both manual entry and automatic timestamping to keep logs consistent across sessions, devices, and time zones.
By modeling data as discrete, timestamped records, teams can assemble chronological workflows, reproduce experiments, and verify data provenance.

Save your calculation history with a free account

How to Use

Provide inputs: event_type, timestamp, value, unit, notes with sample values.
Create or select a session to group records.
Add records manually or import in bulk from CSV/JSON.
Validate and review outputs for completeness.
Export as CSV or JSON for analysis.

Frequently Asked Questions

Find Quick Answers

What inputs are required?

Required fields are event_type and timestamp. Value is optional or may be numeric/text depending on use case; if numeric, unit helps interpretation. Additional fields like notes, location, or device_id are optional for provenance.

How are timestamps stored?

Timestamps use ISO 8601 format and include timezone information when provided. The system stores times in a canonical form (UTC internal) while preserving the original timezone offset for exports.

Can I import existing data?

Yes. The tool supports CSV and JSON imports with field mappings to event_type, timestamp, value, unit, notes, and optional context fields. Imports are validated per-row and invalid rows are reported without breaking valid records.

What export formats are available?

Exports are available as CSV or JSON. CSV provides headers aligned to input fields; JSON returns an array of records with all fields preserved, including timestamps and provenance metadata.

Need to run multiple calculations?

Create a free account today to unlock unlimited daily runs, access advanced parameters, save your history, and request custom features.

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