Free UnixTime.org Alternative
UnixTime.org is a popular developer-focused Unix timestamp converter that emphasizes programming syntax and function references. The site provides conversion tools alongside extensive documentation of date/time functions in languages like JavaScript, Python, PHP, MySQL, and more. It's free to use with minimal ads and includes features like current timestamp display and basic conversions. If you're specifically looking for programming syntax examples, UnixTime.org is a helpful reference. However, if you just need a fast, clean timestamp converter without the programming documentation, Fixie's Unix Timestamp Converter offers a more streamlined experience with additional features like time arithmetic and visual timezone information.
Try Unix Timestamp Converter Free →Unix Timestamp Converter vs UnixTime.org
| Feature | Fixie Unix Timestamp Converter | UnixTime.org |
|---|---|---|
| Price | Free forever | Free (minimal ads) |
| Signup Required | No | No |
| Privacy / Data Handling | 100% client-side — no data sent to server | Client-side conversion with third-party scripts |
| Ads | None | Minimal banner ads |
| Live Clock | Yes, with timezone and day-of-year stats | Yes, current Unix time display |
| Time Arithmetic | Yes, add/subtract time units interactively | No (manual calculation required) |
| Format Support | ISO 8601, RFC 2822, UTC, local, relative time | Basic date/time formats |
| Programming Syntax Examples | No (focused on conversion) | Yes, extensive function references |
| Quick Presets | Yes (now, today, 24h ago, epoch, etc.) | Limited preset options |
| Visual Timezone Info | Yes (timezone, UTC offset, week number) | Basic timezone display |
Why Choose Fixie?
UnixTime.org serves a dual purpose: it's both a timestamp converter and a programming reference guide. If you're writing code and need to look up the correct function syntax for converting timestamps in Python, PHP, or MySQL, UnixTime.org provides helpful examples and documentation all in one place. The site is well-organized and relatively clean compared to other converter sites, with only minimal advertising.
However, the programming focus means the interface includes a lot of syntax documentation that may not be relevant if you just need to convert a timestamp quickly. The tool lacks time arithmetic features, so calculating "what timestamp is 7 days from now" requires manual math or a separate calculator. There's also no relative time display (like "3 hours ago") or advanced format options beyond basic conversions.
Fixie's Unix Timestamp Converter is designed purely for conversion tasks, with no programming documentation to navigate. You get a clean, modern interface with features that speed up common timestamp tasks: time arithmetic to add/subtract time units, quick presets for common values (now, 24h ago, start of year), relative time display ("5 days ago"), and detailed timezone information including your UTC offset and ISO week number. Everything runs 100% client-side with no ads or tracking. If you need programming syntax references, UnixTime.org is the better resource. If you want the fastest, most feature-rich converter for daily timestamp work, Fixie is built for exactly that.
How to Use Unix Timestamp Converter
Step 1: Open the Converter
Navigate to fixie.tools/timestamp — no signup required, works on any device.
Step 2: Use Quick Presets
Click preset buttons like "Now", "Start of Today", "24h Ago", or "Epoch (0)" to instantly load common timestamps. Perfect for quick reference or testing.
Step 3: Convert Timestamps or Dates
Paste any Unix timestamp (seconds or milliseconds — auto-detected) to see all format variations. Or use the date/time picker to convert any date to its Unix timestamp equivalent.
Step 4: Calculate Future or Past Timestamps
Use the time arithmetic feature to add or subtract days, hours, minutes, or seconds from any base timestamp. Great for calculating "7 days from timestamp X" without manual math.