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Measured on six things

Free, private time card calculator with overtime, breaks,...

Security

HTTPS enforced with HSTS, and the tool runs client-side so data never leaves the browser. But only 4/12 security headers present: no CSP, no frame protection, no Referrer-Policy, and no SPF or DMARC records. No published audits or security page.

Screenshots

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HourlyKit Time Card Calculator

About this app

HourlyKit's Time Card Calculator is a free, browser-based tool that transforms messy workweeks into clear hours, overtime, and estimated gross pay. Designed for hourly employees, managers, and freelancers, it supports multiple entry methods—quick line-per-day, paste from any schedule, or a detailed editor for split shifts and overnight work. The calculator automatically handles unpaid breaks, combines split shifts, and applies overtime rules (weekly threshold and optional daily threshold) with a customizable multiplier. It shows its work by displaying applied daily entries, so you can review every assumption before relying on the total. Your data stays private—everything runs locally in your browser, and you can export, print, or copy your results. Whether you're checking a pay stub or organizing billable time, HourlyKit gives you a transparent, no-nonsense way to calculate your hours and pay.

Key features

1Live time card calculator embedded directly in the hero — no signup, no account, works on first load
2Three entry modes: quick line-per-day, paste from any schedule, or detailed editor for split shifts and overnight work
3Automatic handling of unpaid breaks, split shift combination, and weekly plus optional daily overtime with customizable multiplier
4Transparent 'Applied daily entries' section showing exactly which entries produced the total
5Client-side only — data never leaves the browser; draft saved locally; export to CSV, print, or copy summary

Target customer profile

Drawn from the product itself, not from a survey.

Demographic

Hourly employees

Pain points

Manually adding hours is time-consuming and error-prone, especially with breaks and overtime.

Primary needs

Quickly verify hours and estimated pay against pay stubs.

Demographic

Managers of small teams

Pain points

Reviewing schedules for overtime compliance and break accuracy is tedious.

Primary needs

Easily check proposed schedules for overtime and breaks.

Demographic

Freelancers

Pain points

Tracking billable hours across split shifts and multiple clients is disorganized.

Primary needs

Combine work blocks and export data for invoicing.

Scout Review

Written by AI from measured evidence, scored out of 100.

HourlyKit Time Card Calculator is a free, browser-based tool that turns a messy workweek into clear hours, overtime, and estimated gross pay — no account, no signup, no data leaving your machine. It supports three entry methods (quick line-per-day, paste from any schedule, detailed editor for split shifts and overnight work), automatically handles unpaid breaks, combines split shifts, and applies weekly and optional daily overtime rules with a customizable multiplier. The standout feature is transparency: it shows applied daily entries so you can review every assumption before trusting the total. The landing page embeds the live calculator in the hero, which is the right call. Speed is excellent (Lighthouse 98 mobile, 100 desktop). Accessibility is strong (96/100) with one contrast issue. Security is the weak spot — only 4/12 headers present, no CSP, no DMARC — though the client-side architecture is genuinely privacy-respecting. Growth is capped by the free, no-account model: a real problem, a real wedge, but no retention loop and no moat. It's a well-built utility that does one thing honestly and well.

Measure by measure

Usability

No signup, no account, calculator works on first load. Three entry modes with inline examples ('Try a 9-5 week') cut the learning curve. Applied daily entries give real feedback. No docs or help center beyond the page itself.

Design

Clean, calm landing page with the calculator live in the hero — no signup wall, no stock-photo fluff. Numbered sections and thin rules keep it scannable. Dense input block and a ghosted secondary CTA drag it below the best in class.

Speed

Lighthouse mobile 98/100 with LCP 2.1s, CLS 0, TBT 19ms; desktop a perfect 100/100. FCP at 901ms. For a page that ships a live interactive calculator, that's genuinely fast — no heavy SPA framework tax visible.

Security

Accessibility

Lighthouse accessibility 96/100 — strong baseline. One failing audit: insufficient color contrast on background/foreground pairs. No a11y statement, no multi-language support, and the audit was desktop-only with no responsive breakpoints confirmed.

Growth

Real problem, specific audience (hourly workers verifying pay stubs), and a genuine wedge: it shows applied entries instead of hiding the math. But it's a free single-purpose tool with no account, no retention loop, and no moat against a spreadsheet.

Improvement areas

Security headers incomplete — only 4/12 present; no CSP, frame protection, Referrer-Policy, or DMARC
Accessibility contrast failure flagged by Lighthouse; no a11y statement or multi-language support
No help center or docs beyond the landing page — edge cases like overnight shifts and daily OT overlap are undocumented
No retention loop or monetization path: free, no account, no data stored means no reason to return

Design & Usability

HourlyKit's landing page does the one thing most SaaS landing pages are too scared to do: it puts the actual product in the hero. The time card calculator is live, interactive, and usable before you scroll — no 'Book a demo', no email gate, no fake screenshot. The visual language is calm and disciplined: light blue numbered circles, thin horizontal rules, left-aligned bold headings against right-aligned body copy. Three entry modes (Quick, Paste, Detailed) are tabbed and explained with inline examples like 'Try a 9-5 week', which is exactly how you reduce first-time-user paralysis. The weak spots are real but minor: the secondary 'Try a single shift' button is nearly invisible next to the primary blue CTA, and the calculator form itself crams a dozen small inputs and checkboxes into one dense block that reads as visual noise. The results table and 'Applied daily entries' section sit directly below the inputs, so feedback is immediate. There's no help center or docs beyond the page, which is fine for a tool this focused but leaves edge cases (overnight shifts, daily OT rules) to be figured out by trial.

Speed & Security

Speed is where HourlyKit genuinely shines. Lighthouse mobile scores 98/100 with an LCP of 2.1s, CLS of 0, TBT of 19ms, and FCP of 901ms; desktop hits a perfect 100/100. For a page that ships a fully interactive calculator with live-updating results tables, that's an impressive result — no heavy SPA framework tax, no render-blocking bloat. Security is a more mixed picture. The good news: HTTPS is enforced with HSTS, and the tool's architecture is genuinely privacy-friendly — everything runs client-side in the browser, drafts are saved locally, and the site explicitly states employee name and pay period fields are never used in calculation or saved. The bad news: only 4 of 12 standard security headers are present. There's no Content-Security-Policy, no X-Frame-Options or frame-ancestors, no X-Content-Type-Options, no Referrer-Policy, and no Permissions-Policy. DNS records show no SPF and no DMARC, which matters less for a tool with no email, but it's still a gap. No published SOC 2, ISO, or pen-test results — expected for a free indie tool, but it caps the score.

Accessibility & Growth

Accessibility lands at a strong 96/100 on the Lighthouse audit, with a single failing check: insufficient color contrast between background and foreground colors. That's the one issue a sighted user notices immediately, and it's worth fixing — light blue accents on white backgrounds are the likely culprit. Beyond the automated score, there's no accessibility statement, no documented keyboard navigation support, no multi-language options, and the audit was desktop-only with no responsive breakpoints confirmed, so mobile screen-reader behavior is unverified. On growth: the idea itself is sound. Hourly workers, small-team managers, and freelancers all have a real, recurring need to verify hours and estimated pay, and the wedge is specific — HourlyKit shows its work by displaying applied daily entries, so you can audit the calculation instead of trusting a black-box total. That's a genuine differentiator against Clockify, Toggl Track, and Harvest, all of which are account-based trackers, not instant calculators. The problem is the ceiling. It's a free, no-signup, no-account, no-data-stored tool. There's no retention loop, no network effect, no accumulating data advantage, and no obvious path to monetization. It's a beautifully executed utility that solves a real problem once and then has no reason to see you again.

Conclusion

If you're an hourly worker who wants to double-check a pay stub, a manager sanity-checking a proposed schedule for overtime, or a freelancer totaling split shifts before an invoice, HourlyKit does the job in under a minute with zero friction. It won't replace your payroll system, and it explicitly says so. It won't track clients or generate invoices, and it says that too. What it will do is show you exactly how it arrived at its number, which is more than most tools in this space bother to do. The gaps are fixable: tighten the security headers, fix the contrast issue, add a short help section for edge cases like overnight shifts and daily OT rules. None of those are hard. The harder question is whether a free, no-account calculator can ever become more than a one-time visit — and right now, nothing in the product answers that.

Suggestions for improvement

Add Content-Security-Policy, X-Frame-Options, X-Content-Type-Options, and Referrer-Policy headers — the current 4/12 score is easy to improve.
Fix the color contrast failure flagged by Lighthouse; light blue accents on white are the likely culprit and it's a quick win.
Add a short help section covering overnight shifts, daily OT rules, and how daily/weekly thresholds interact when they overlap.
Give the secondary 'Try a single shift' button more visual weight, or remove it — right now it reads as disabled next to the primary CTA.

How we score

Alternatives comparison

Named competitors, point by point. Nobody paid to appear here or to be left out.

	HourlyKit Time Card Calculator	Clockify	Toggl Track	Harvest
Pricing model	Free, no account required	Free tier; paid plans from ~$3.99/user/mo	Free tier; paid plans from ~$9/user/mo	Paid only; from ~$12/user/mo
Account required	No — works instantly in browser	Yes — signup required to track	Yes — signup required to track	Yes — signup required
Overtime calculation	Weekly + optional daily threshold, custom multiplier	Overtime rules on paid plans	Limited; not a core feature	Not a core feature
Data privacy / storage	Client-side only; nothing leaves browser	Cloud-stored; account data on servers	Cloud-stored; account data on servers	Cloud-stored; account data on servers
Invoicing / client management	No — explicitly not supported	Yes — invoicing on paid plans	Yes — via integrations	Yes — core feature
Export options	CSV, print, copy summary	CSV, PDF, Excel, API	CSV, PDF, API	CSV, PDF, API