Can I record multiple laps?

Yes, record as many laps as you need during a single timing session, each with its own recorded time.

Does the stopwatch keep running if I switch to another browser tab?

Yes, timing continues in the background even if the tab isn't currently in focus.

Can I reset the stopwatch mid-session?

Yes, you can reset to zero at any point to start a fresh timing session.

Does Stopwatch upload my files to a server?

No. Stopwatch runs entirely in your browser using on-device processing, your files never leave your device.

Stopwatch

A stopwatch with lap tracking, right in your browser.

Runs in your browser

00:00.00

About this tool

A basic stopwatch with lap tracking is something you reach for constantly — timing a workout, a presentation, a task — and having one instantly available in a browser tab beats digging for a physical stopwatch or opening a phone app. This tool is a stopwatch with lap tracking, ready to use immediately in your browser without installing anything.

Frequently asked questions

Pomodoro Timer

A 25-minute focus timer with automatic short and long breaks.

File Converter

Convert data files between CSV, JSON and TSV.

Hot

JSON Formatter

Format, validate and minify JSON.

Base64 Converter

Encode or decode text and files as Base64.

Base32 Encoder/Decoder

Encode or decode text as Base32.

ULID Generator

Generate sortable, timestamp-based ULIDs.

Semver Parser/Comparator

Parse and compare two semantic version numbers.

.env File Parser/Validator

Parse a .env file and flag duplicate keys, missing values and invalid names.

Markdown Table Generator

Build a Markdown table with a spreadsheet-style editor.

CSS Grid Generator

Visually build a CSS Grid layout and copy the code.

CSS Flexbox Generator

Visually build a CSS Flexbox layout and copy the code.

Online Stopwatch

A simple online stopwatch with lap timing.

PDF Tools

Merge, split, compress and convert PDF files.

Image Tools

Compress, resize, crop and convert images.

Link & QR Tools

Shorten links and generate QR codes and barcodes.

Audio Tools

Convert audio files and turn text into speech, or speech into text.

Video Tools

Compress and process video files, right in your browser.

SEO & Web Tools

Meta tags, sitemaps, schema markup and other on-page SEO utilities.

Data & Spreadsheet Tools

Clean, convert and inspect CSV, TSV and tabular data.

File Tools

Archive, inspect and convert files, right in your browser.

Business Tools

Invoices, quotations, receipts and other business documents.

Social Media Tools

Resize images for social platforms, count hashtags and preview posts.