Home / Data & Encoding / Unix Timestamp & Epoch Converter

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Data & Encoding

Data & Developer Converters

Fast, secure developer format converters. Transform JSON to CSV, YAML, Base64 data URIs, URL encodings, JWT bearer tokens, and Unix epoch timestamps with instant syntax validation.

Unix Timestamp & Epoch Converter

Convert Unix epoch timestamps (seconds, milliseconds, nanoseconds) to UTC, local time, ISO-8601, and relative time.

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Upload Images

Drag and drop images here, browse, or press Ctrl+V

Supports PNG, JPG, WebP, AVIF, SVG, BMP, and GIF • Batch processing ready

Convert To:

Quality:85%

Max Dimension:

Converted Images (0)

No images uploaded yet. Drag files into the box to begin.

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Upload Photo to Inspect & Scrub

Drop photo here, click to browse, or press Ctrl+V

Inspects EXIF, Camera Serial, Adobe XMP, and GPS Coordinates

Metadata Inspection (Before & After)

Upload or paste an image to inspect its embedded EXIF, Camera, and GPS metadata.

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Upload Source Image

Click or drag PNG, SVG, or JPG image to generate Favicon

High-resolution square images (512x512 or SVG) produce the best results

Include Resolutions in .ICO:

16x16 (Browser Tab)32x32 (Retina Tab / Taskbar)48x48 (Desktop Shortcut)64x64 (Application Icon)128x128 (Windows Store)256x256 (High-Res Windows)

Generated Icon Preview & Download

Upload an image to preview favicon resolutions.

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SVG Input & Source

Drop SVG file here, or click to upload

Or Edit / Paste Raw SVG Code:

Resolution Scale:

Target Format:

Background:

SVG Live Preview & Export

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Interactive Color Spectrum & Adjuster

Hue Spectrum160°

RGB Component Adjusters

Red:16

Green:185

Blue:129

HSL (Hue, Saturation, Lightness)

Hue:160°

Saturation:84%

Lightness:39%

Extract Palette from ImageAuto 6-Color Sampler

Drag and drop an image here, browse, or press Ctrl+V

Supports PNG, JPG, WebP, AVIF, SVG & Logos • Extracts 6 dominant colors locally

Converted Formats

HEX#10B981

RGBrgb(16, 185, 129)

HSLhsl(160, 84%, 39%)

HSVhsv(160, 91%, 73%)

CMYKcmyk(91%, 0%, 30%, 27%)

CSS Variable--color: #10b981;

WCAG Accessibility Contrast

On White (#FFF)2.54 : 1

AA FailAAA Fail

On Black (#000)8.28 : 1

AA PassAAA Pass

Harmonic Palettes

Complementary (Opposite 180°)

Triadic (120° Spacing)

Monochromatic Tints & Shades

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Add PDF Files

Click or drag PDF files here to reorder & merge

Files are processed 100% in your browser. Zero server uploads.

PDF Queue (0)

Add at least two PDF files to merge into a single document.

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Upload PDF to Split or Rotate

Click or drop a PDF file here

Extract page ranges, rotate pages, or burst into individual PDF files

PDF Pages (0 of 0 selected)

Upload a PDF document to view, select, rotate, and extract individual pages.

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Add Images for PDF

Click or drag JPG, PNG, or WebP images here

Each image will be placed on its own organized PDF page

Page Dimension:

Page Margins:

Image Pages (0)

Add images to create a multi-page PDF document.

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Markdown to HTML

Input Markdown

HTML Output

Markdown to HTML Converter

Welcome to conversion.zone! Convert your Markdown documents to clean, responsive HTML directly in your browser.

Features

100% In-Browser: Zero server uploads, completely private.
Bi-directional: Convert Markdown to HTML or HTML to Markdown.
Live Preview: See your rendered HTML instantly.

Formatted Elements

Here is a blockquote:

Markdown is a lightweight markup language that makes web formatting simple.

Inline code and code blocks:

const greet = (name) => {
  return Hello, ${name}!;
};

Links: Visit conversion.zone

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JSON to CSV

Input JSON

Output CSV

id,name,email,role
"1","Alice Smith","alice@example.com","Engineer"
"2","Bob Jones","bob@example.com","Designer"
"3","Carol White","carol@example.com","Manager"

Send To:

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JSON to YAML

Input JSON

Output YAML

apiVersion: v1
kind: ConfigMap
metadata:
  name: web-config
  namespace: production
data:
  site_name: conversion.zone
  environment: production
  features:
    - client-side
    - zero-upload
    - privacy-first
  max_upload_mb: 250

Send To:

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Raw Text or File Input

Or click / drop any file to convert to Base64 Data URI

Converted Output

SGVsbG8gZnJvbSBjb252ZXJzaW9uLnpvbmUhIDEwMCUgaW4tYnJvd3Nlci4=

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Input URL / URI String

Percent-Encoded URL

https%3A%2F%2Fconversion.zone%2Fsearch%3Fcategory%3Dimages%26tool%3Dimage-converter%26quality%3D90%26tags%3Dfree%252Cfast%252Cprivate%23preview

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Encoded JWT Bearer Token

Token StatusValid (Unexpired)

Issued At (iat):Oct 24, 2025, 12:00:00 AM UTC

Expires At (exp):Apr 1, 2030, 8:53:20 AM UTC

Decoded JOSE Header (Algorithm & Type)

{
  "alg": "HS256",
  "typ": "JWT"
}

Decoded JWT Payload (Claims & Data)

{
  "sub": "user_9b3d10",
  "name": "Alice Smith",
  "role": "admin",
  "iss": "conversion.zone",
  "iat": 1761264000,
  "exp": 1901264000
}

Signature Segment: signature_verification_sample_only

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Current Unix Epoch:1793540018

Convert Timestamp or Date

Unix Timestamp (s, ms, or ns):Detected: Seconds (s)

Or Convert Date / ISO-8601 String to Epoch:

Quick Offset Presets:

Converted Date & Epoch Formats

ISO-8601 (UTC)2026-11-01T13:33:38.000Z

UTC / GMT StringSun, 01 Nov 2026 13:33:38 GMT

Local Browser TimeSunday, November 1, 2026 at 1:33:38 PM UTC

Unix Seconds (s)1793540018

Unix Milliseconds (ms)1793540018000

Relative TimeJust now

Cron Syntax Generator

Build, edit, and translate 5-part cron schedule expressions.

Cron Expression

Minute (0-59)

Hour (0-23)

Day (1-31)

Month (1-12)

1-5

Weekday (0-6)

Schedule Intelligence

PARSED

Human-Readable Translation

"At 9:00 AM, Monday through Friday"

Next 5 Scheduled Executionslocal time

1Mon, Nov 2, 9:00 AM
in 19 hr
2Tue, Nov 3, 9:00 AM
in 2 days
3Wed, Nov 4, 9:00 AM
in 3 days
4Thu, Nov 5, 9:00 AM
in 4 days
5Fri, Nov 6, 9:00 AM
in 5 days

Quick Syntax Reference

* = Any / every value
, = Value list separator (e.g. 1,15,30)
- = Range of values (e.g. 1-5 for Mon-Fri)
/ = Step values (e.g. */15 for every 15)