Epoch Converter Pro

Epoch Converter Pro

Unix timestamp converter with 9 advanced time utilities

Guide reviewed 2 October 2026 by Milan Salvi. How we write and correct guides.

Open Epoch Converter Pro →

Step-by-step help guide and questions and answers for this tool.

Epoch Converter Pro

Table of Contents

  1. Overview
  2. Key Features
  3. How to Use
  4. Frequently Asked Questions
  5. Privacy & Security

Overview

Epoch Converter Pro is a free Unix timestamp converter that runs entirely in your browser. It is built for developers reading API responses, administrators going through log files and anyone who needs to turn a Unix timestamp into a readable date or back.

The tool supports bidirectional conversion between epoch timestamps and dates with automatic format detection. It can distinguish between timestamps in seconds (10 digits), milliseconds (13 digits), microseconds (16 digits), and nanoseconds (more than 16 digits) without any manual configuration. Simply paste your timestamp and get instant results in multiple formats including local time, UTC time, and ISO 8601.

Beyond basic conversion, Epoch Converter Pro includes 9 advanced tools for time-related calculations: multi-timezone comparison, duration calculator, countdown timer, working days calculator, age calculator, timestamp difference calculator, code snippet generator for 6 programming languages, cron expression converter, and ISO 8601 duration parser. All processing happens locally on your device, ensuring complete data privacy.

Key Features

Bidirectional Conversion

Convert epoch to date and date to epoch with auto-detection of timestamp units. Supports seconds, milliseconds, microseconds, and nanoseconds formats automatically.

9 Advanced Time Tools

Multi-timezone comparison, duration calculator, countdown timer, age calculator, working days calculator, timestamp diff, code generator, cron converter, and ISO 8601 parser.

Multi-Timezone Comparison

View any timestamp across 8 major timezones simultaneously including UTC, EST, PST, GMT, CET, IST, and JST. Perfect for scheduling international meetings.

Batch Processing

Convert multiple timestamps at once with drag-and-drop file import. Export results in CSV, JSON, or Excel format for integration into your workflow.

Code Snippet Generator

Generate ready-to-use timestamp conversion code in 6 programming languages: JavaScript, Python, Java, PHP, Go, and Ruby. One-click copy to clipboard.

History & Shareable URLs

Stores your last 100 conversions with search and filtering. Generate shareable URLs that auto-load specific conversions for easy collaboration.

Keyboard Shortcuts

Three keyboard shortcuts: Ctrl+K jumps to the epoch input, Ctrl+/ lists the shortcuts and Escape closes any open window.

Accessibility Settings

Font size from 80% to 150%, a reduced motion option, and spoken updates for screen readers, all remembered in your browser.

How to Use

Epoch Converter Pro open in the browser, showing its main screen
Epoch Converter Pro as it opens in the browser (screenshot of the tool on 2 October 2026).
  1. Open the tool - Visit the Epoch Converter Pro website. No installation, account, or setup is required. The tool loads instantly in your browser.
  2. Convert Epoch to Date - Enter any Unix timestamp in the Epoch Timestamp input field (e.g., 1709482800). Click Convert and see results in local time, UTC, ISO 8601, and both seconds and milliseconds formats.
  3. Convert Date to Epoch - Enter a human-readable date in any supported format (ISO 8601, US, European, or natural language like "March 3, 2024"). Click Convert to see the corresponding Unix timestamp.
  4. Use Quick Actions - Click preset buttons for common timepoints: Now, Today Start, Today End, Yesterday, Tomorrow, Week Start, Month Start, or Year Start for instant conversions.
  5. Explore Advanced Tools - Navigate to the Tools section to access multi-timezone comparison, duration calculator, countdown timer, working days calculator, age calculator, timestamp diff, code generator, cron converter, or ISO 8601 parser.
  6. Batch Process Multiple Timestamps - Switch to the Batch section to convert multiple timestamps at once. Enter one per line or drag and drop TXT, CSV, or JSON files. Export results in your preferred format.
  7. Review Your History - Access the History section to search through your last 100 conversions, filter by type, and copy any previous result with one click.

Frequently Asked Questions

What is Epoch Converter Pro?
Epoch Converter Pro is a free Unix timestamp converter that runs entirely in your browser. It features bidirectional epoch/date conversion with auto-detection, 9 advanced tools, batch processing, history tracking, shareable URLs, and accessibility settings. All processing happens locally on your device for complete privacy.
What timestamp formats are supported?
The tool supports all Unix epoch timestamp units with automatic detection: seconds (10 digits), milliseconds (13 digits), microseconds (16 digits), and nanoseconds (more than 16 digits). It also accepts ISO 8601, US date format (MM/DD/YYYY), European format (DD/MM/YYYY), and natural language dates like "January 1, 2025".
Is there a limit to how many timestamps I can convert?
No. You can convert unlimited timestamps using the batch processing feature, and the history stores your last 100 conversions. All processing happens locally on your device, so there are no server-side restrictions.
What timezones are supported?
Epoch Converter Pro supports 8 major timezones plus your system local timezone: UTC, EST/EDT (America/New_York), CST/CDT (America/Chicago), MST/MDT (America/Denver), PST/PDT (America/Los_Angeles), GMT (Europe/London), CET/CEST (Europe/Paris), IST (Asia/Kolkata), and JST (Asia/Tokyo).
How does the Code Snippet Generator work?
The Code Generator creates ready-to-use timestamp conversion code in 6 programming languages: JavaScript (browser and Node.js compatible), Python (using datetime module), Java (using java.time package), PHP (using date() and strtotime()), Go (using time package), and Ruby (using Time class). One-click copy makes it easy to integrate into your projects.
What export formats are available for batch processing?
Three professional export formats are available: CSV for spreadsheet compatibility with Excel or Google Sheets, JSON for structured programmatic use, and native Excel (XLSX) format with proper formatting. All exports include metadata and are generated entirely on your device.
Are my timestamps sent to your servers?
No. All timestamp conversions happen entirely in your browser using client-side JavaScript. Your data never leaves your device, ensuring complete privacy and security. There are no backend API calls for conversions. History is stored only in your browser's localStorage.
What keyboard shortcuts are available?
Three keyboard shortcuts are available: Ctrl/Cmd+K to focus the epoch input field, Ctrl/Cmd+/ to show the list of shortcuts, and Escape to close any open window.
Can I install this as an app?
Yes. You can add ZeroDataUpload, the site this tool belongs to, to your desktop with the install option in Chrome or Edge, or to your phone's home screen from the browser menu. It opens in its own window; it still needs a connection to open, and it always shows the current version.
What accessibility features are available?
Epoch Converter Pro has font scaling from 80% to 150%, a reduced motion option for vestibular disorders, ARIA live regions for screen reader announcements, full keyboard navigation support, and clear visual focus indicators. It has been tested with NVDA, JAWS, and VoiceOver.

Privacy & Security

Your Data Never Leaves Your Device

All timestamp conversions in Epoch Converter Pro happen entirely in your browser using pure client-side JavaScript. Your timestamps are never uploaded to any server, never transmitted over the internet, and never stored anywhere outside your own device. There are no backend API calls, no analytics tracking individual conversions, and no cookies that record your conversions.

Conversion history is stored exclusively in your browser's localStorage and can be cleared at any time using the "Clear History" button. Settings and theme preferences are also stored locally. When you close the browser tab, no trace of your activity remains on any external server.

Epoch Converter Pro is built with the GDPR, CCPA and DPDPA privacy principles in mind: your timestamps and files never leave your device. The service is supported by Google AdSense advertising, which keeps every feature free with no premium tiers or hidden costs.

Ready to try Epoch Converter Pro? It's free, private, and runs entirely in your browser.

Open Epoch Converter Pro →

Related

Blog: Unix Timestamps Complete Guide

Learn everything about Unix timestamps, how they work, and why developers use them across programming languages.

ArchivePro

Create and extract ZIP archives directly in your browser with password protection and AES encryption.
Milan Salvi

Milan Salvi

Founder, Leena Software Solutions

Milan is the founder of ZeroDataUpload and Leena Software Solutions, building privacy-first browser tools that process everything client-side. View all articles · About the author.

Last Updated: February 28, 2026