free · in-browser · no upload
Drop your Timestamp file. We'll convert it to Readable date right here in your browser, your file never leaves your device.
Select your file here to get started
or drop your file here.
Accepts .txt
How it works
Click the dropzone above or drag a Timestamp from your desktop. Files of any size, there's no upload, so there's no upload limit.
The conversion runs entirely in this tab using JavaScript and WebAssembly. Your file never touches our servers, we don't have any.
Get your Readable date the moment the conversion finishes. Convert another, or close the tab.
Your file is never uploaded. The entire conversion runs in your browser using WebAssembly. We can't see what you convert because we have no server to see it.
Server converters cap free users at 1-2 GB and gate larger files behind a paid plan. Since nothing uploads, our limit is whatever your browser can handle.
No account required. No watermark on the output. No queue. Drop a file, get a converted file.
Formats involved
Generic timestamp input — accepts both Unix epoch numbers (10-digit seconds, 13-digit milliseconds) and ISO 8601 date strings. Useful when you have a column of mixed-format dates from heterogeneous sources (different APIs, log shippers, exports) and need to normalize them.
How to open
Plain text. Any text editor or scripting language can read the input column.
Human-readable date format like `Mon, 15 Jan 2024 14:30:00 UTC` — based on RFC 1123 with `UTC` substituted for `GMT` for clarity. Always UTC and locale-independent so cross-region teams see identical strings, the whole point of normalization. Useful for audit logs, status pages, and any context where humans need to verify timestamps quickly.
How to open
Any text editor. The format is structured enough to parse mechanically (`Date.parse` accepts it) but readable enough to scan visually.
FAQ
Yes. No signup, no watermark, no daily file count limit. Every conversion runs in your browser, your file never touches our servers because there are no servers.
Nowhere. The conversion runs entirely in your browser using JavaScript and WebAssembly. Your file is never uploaded to our servers. We don't have any servers handling files, there's nothing for us to log, store, or accidentally leak.
Whatever your browser can hold in memory. Practically, this means a few hundred MB on most computers, significantly larger than the 1-2 GB caps that server-upload converters charge for. Very large files (multi-GB) may require closing other browser tabs first.
Normalizing mixed timestamp formats from different sources. Human verification of timestamps in audit logs and reports. The most common reason to convert is compatibility, Readable date works in places where Timestamp doesn't, or vice versa.
Plain text. Any text editor or scripting language can read the input column.
Once the page is loaded, the conversion itself runs entirely offline. The first time you use a tool, your browser downloads the conversion library (a one-time cache). If you reload while offline, the page won't load, but you can install the site as a Progressive Web App for full offline use.
Single file at a time for now. Batch conversion is on the roadmap, for now, drop one file, download the result, then convert the next.
