ESMToolbench
Free forever · no sign-up · runs in your browser

Essential tools for ecommerce, SEO & marketing

The tools used every day by ecommerce, SEO & marketing experts — in one place, all free, with no sign-up.

Browse all 36 toolsRecommend a tool

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I keep every tool here free. If they save you time, a small one-off contribution helps with hosting.

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Everything in one place36 tools across 6 families — campaign tagging, on-page SEO, pricing and performance maths — instead of ten bookmarks.Free forever, no software licenceThe same jobs are usually buried inside suites costing hundreds a month. Here they're free, with no seat limits and no trial clock.Private by designEvery calculation runs in your browser. No accounts, no uploads, no tracking of the URLs or copy you paste in.Instant, no onboardingOpen a tool and it works — results update as you type, with one-click copy for anything you need to paste elsewhere.

Browse by job

Six collections organised around the work, not the technology. Pick the job you're doing and find every tool for it.

Campaigns & URLs· 6 tools

Build, clean and validate campaign URLs without wrestling with tracking parameters.

SEO & Search· 13 tools

Check and improve pages, metadata and technical SEO before you hit publish.

Ecommerce & Pricing· 7 tools

Price products, understand profitability and calculate ecommerce costs.

Advertising & Marketing· 4 tools

Paid media maths: CPM, CPC, CPA, ROAS and campaign budget planning.

Analytics & Conversion· 4 tools

Understand funnels, customer economics and experiments with clear formulas.

Content & Social· 2 tools

Lightweight helpers for content and social marketing — counts, lengths and checks.

A look inside

No demos to book and no dashboards to learn — three of the tools, exactly as they look when you open them.

UTM Link Builder
UTM Link Builder tool showing a tagged campaign URL being generated live

Tag a campaign URL in seconds

Correctly encoded, copy-ready links — no hand-editing query strings.

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ROAS Calculator
ROAS and break-even calculator showing return on ad spend and profit figures

Know your break-even before you spend

ROAS, POAS, ACoS and the break-even your margin actually requires.

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SERP Preview
SERP snippet preview showing a Google-style search result with title and description length meters

See the search result before Google does

Pixel-aware length meters so nothing gets truncated on mobile.

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Free forever — a donation keeps it that way

No accounts, no limits, no data collection, and that won't change. If these tools save you time, a small contribution towards hosting and upkeep wouldn't be missed.

Buy me a cup of teaOne-off, no account needed.

Missing something you use daily?

Tell me the job you keep doing by hand and I'll look at building it in.

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