Timesheet / Hours Tracker

Log hours against a client or project, then print a clean per-client summary to bill from — entirely offline, with nothing ever sent to a server.

Log time against a client and project — either as a plain number of hours or a start/end time range — and watch running totals and a per-client breakdown update live. When it's time to bill, filter to a client and date range and print (or save as PDF) a clean, itemized summary using your browser's own print function. Entries live in this browser's local storage, with JSON export/import to move your data to another device — no account, no cloud sync, no per-seat fee.

What it does

Every mainstream time tracker is a cloud product first. Toggl Track and Clockify both give away a free tier, but both require creating an account and syncing your client names and hours to their servers — even the "free" version is a login-gated cloud service, not an offline tool. Harvest's free plan doesn't require quite as much commitment, but it caps you at 2 active projects, which stops working the moment a consultant (the exact buyer this tool is built for) is billing a third client. None of them are actually built to let you just open a file and start logging time with nothing to sign into and nothing leaving your machine.

Who it's for: a freelance consultant, contractor, or small agency owner juggling a handful of clients who wants to log hours through the week and export a clean, correct summary to bill from at month-end, without creating an account for a tool used a few minutes a day.

Example scenario: a consultant works across three clients in a week — some days logged as a plain number of hours, one afternoon logged as an actual start/end time block for a client call. At month-end, they filter the tool to one client and the billing date range, check the live summary (grouped by client, itemized by date/project/description, subtotaled), and click "Print / Save as PDF" to get a clean document to attach to an invoice — then repeat for the next client by switching the filter.

What it explicitly does not do: it does not track time automatically (no idle detection, no active-window monitoring — every entry is logged by hand, on purpose, since automatic tracking requires exactly the kind of background access a local-only browser tool can't and shouldn't have); does not generate an invoice with tax/discount math or payment terms (pair it with a separate invoicing tool, like this line's own Invoice Generator, for that step); does not sync across devices on its own (JSON export/import moves data between devices manually, deliberately — there is no server to sync through); does not support overnight shifts that cross midnight (log those as two same-day entries instead — see Known limitations below); and does not stop you from saving two overlapping time-range entries — it warns you, but the decision to keep both is yours (see the overlap-handling note below).

Features

• Log time two ways — a plain number of hours, or a start/end time range that computes the hours for you.
• Live running totals and a per-client hours breakdown that update as you log, edit, or delete entries.
• Filter by client and by date range (This week / Last week / This month / All time, or a custom range) — the same filter drives the entry list and the printable summary.
• One-click "Print / Save as PDF" of a clean, per-client summary — itemized by date, project, and description, subtotaled per client — using your browser's own native print engine, no PDF library required.
• CSV export of the currently filtered entries, plus a full JSON export/import so your data can move between devices without ever touching a server.
• Built-in validation (blocks zero/negative hours, a missing client name, and an end time before a start time) plus a non-blocking warning — not a hard block — when two time-range entries on the same date overlap, since that's sometimes genuinely intentional.

Browser support

Plain-language summary for the listing: Verified on desktop Chrome (including a full automated test of every feature — logging, math, validation, editing, deleting, CSV/JSON export and re-import, print, and a 220-entry performance run), and visually confirmed on desktop Safari and Firefox. Not yet verified on a physical iOS or Android device — if you're on mobile, it's built with only standard, widely-supported web features (plain HTML forms, localStorage, CSS print styles), so it's very likely to work, but this hasn't been confirmed hands-on yet.

FAQ

Does my data get uploaded anywhere?
No. This is a single HTML file with zero network requests — open your browser's developer tools and watch the network tab if you want to verify it yourself. Every entry is saved only in this browser's local storage, on your own machine.

Does this work on my iPhone/iPad?
It hasn't been verified on a physical iOS device yet (see the platform-support table above for exactly what has and hasn't been checked). It uses only standard web features with no exotic APIs, so it's likely to work, but this tool doesn't claim iOS support until that's been confirmed hands-on.

Can I move my entries between my laptop and desktop?
Yes — click "Export JSON (backup)" on one device, then "Import JSON…" on the other. There's no automatic sync (there's no server to sync through), so this is a deliberate, manual step, but it's a genuine round trip: every field of every entry comes back exactly as it was.

What happens to my data if I lose the tool file, or clear my browser data?
Your logged entries live in this browser's local storage, tied to this specific browser and device — they aren't inside the `index.html` file itself, so re-downloading the tool doesn't lose them, but clearing this browser's site data or switching browsers/devices would. That's exactly what "Export JSON (backup)" is for: click it periodically (or right before doing anything that might clear browser storage) and keep the resulting `.json` file somewhere safe — "Import JSON…" restores everything from it exactly.

Does this work offline?
Yes, completely — there's no server involved at any point, online or offline. Open the file and it works, on a plane or anywhere else.

Can I use this for client or commercial work?
Yes. Every summary you generate is entirely yours — no attribution required, no restriction on client-facing or commercial use.

Is there a subscription?
No. This is a one-time purchase of a single, self-contained HTML file. No recurring charges, no per-seat fee, no feature paywall.