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Client-side ProcessingUpdated 2026-02-11Report issue

Runs fully in your browser. Inputs stay on your device. See recent fixes on changelog.

ISO 8601 Date Converter

Convert dates to and from ISO 8601 format.

FreeRuns in browseriso 8601 converteriso date format

Converts to/from ISO 8601 format (e.g., 2024-01-15T12:30:00Z).

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Cmd/Ctrl+Enter Primary actionCmd/Ctrl+Shift+L Load sampleCmd/Ctrl+Shift+X Clear/resetCmd/Ctrl+Shift+C Copy result

About ISO 8601 Date Converter

Convert dates to and from ISO 8601 format online for free. Parse and generate standardized date-time strings like 2024-01-15T12:30:00Z for API integration. Implements standard encoding and decoding algorithms that produce output compatible with all major programming languages and platforms. Supports both encoding and decoding in a single interface. Everything runs client-side in your browser for maximum speed and privacy — no data is sent to any server, and no signup is required.

Related tools: Epoch Time Converter, Unix Timestamp Converter, Date Formatter

How to Use ISO 8601 Date Converter

  1. Enter text or data in the input field.
  2. Click Encode or Decode depending on your goal.
  3. Copy the output to your clipboard.

Frequently Asked Questions

What is ISO 8601 Date Converter?
Convert dates to and from ISO 8601 format online for free. Parse and generate standardized date-time strings like 2024-01-15T12:30:00Z for API integration.
What encoding standards are used?
This tool follows the official encoding specifications, including RFC standards where applicable. The implementation matches widely-used libraries so the output is compatible with other systems and programming languages.
Can I encode binary data?
The tool primarily handles text input, but many encoding formats such as Base64 are designed to represent binary data as text. You can paste Base64-encoded binary data for decoding or encode text into a binary-safe format.
Is the encoding reversible?
Yes, all encoding operations provided by this tool are fully reversible. You can encode text and then decode it back to get the exact original content without any data loss.
Is ISO 8601 Date Converter free to use?
Yes, encoding and decoding are completely free with no usage limits. The tool runs in your browser and requires no registration.
Is my data safe when using ISO 8601 Date Converter?
Yes, all encoding and decoding happens locally in your browser. No data leaves your device, so your input remains completely private.

Related Tools

Epoch Time Converter
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Unix Timestamp Converter
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Date Formatter
Format dates into various string patterns and locales.