Free tools that work

Each tool does one thing well. No signup, no account, no data collected. Runs entirely in your browser.

Available now

EU AI Act Compliance Checker

Assess your AI system's risk classification under Regulation (EU) 2024/1689. Identify prohibited practices, high-risk obligations, and transparency requirements.

Available now

Freight Class Calculator

Find your NMFC freight class from shipment dimensions and weight. Avoid LTL reclassification fees and get accurate carrier quotes.

Available now

LinkedIn Text Formatter

Format LinkedIn posts with bold, italic, strikethrough, and Unicode bullet characters. Live preview, character counter, and one-click copy.

Available now

Catalytic Converter Repair Cost Estimator

Estimate catalytic converter and DPF repair costs by vehicle type, fuel type, and location. Covers petrol and diesel, with regional pricing for the US, UK, EU, and more.

Available now

XML Formatter & Validator

Paste or upload XML to instantly prettify, minify, or validate it. Syntax highlighting, error pinpointing with line numbers, and one-click copy. Nothing is uploaded.

Available now

Child Screen Time Impact Calculator

Enter your child's age and daily screen usage across categories to score the routine against WHO and AAP guidelines. Get age-appropriate limit recommendations with cited sources.

Available now

Browser Privacy Leak Tester

Check what your browser reveals to every site: WebRTC IP leaks, canvas fingerprint, WebGL GPU info, timezone, screen, and more. Runs entirely in your browser. Nothing is sent to any server.

Available now

Apple Privacy Settings Audit Tool

Step through every privacy-relevant setting on iPhone, iPad, and Mac. Organized by threat level: Critical, Recommended, and Optional. Check off each item and see your privacy score update in real time.

Available now

EU Sanctions Entity Checker

Search the EU Consolidated Financial Sanctions List by name, country, or entity type. Returns listing date, programme, and legal basis. 5,993 entities from EU open data. Runs in your browser, nothing uploaded.

Available now

AI Job Displacement Risk Checker

Search your occupation to see its automation probability score based on Oxford Martin School and WEF research. Shows tasks most at risk, a timeline outlook, and lower-risk careers with transferable skills. Runs in your browser, nothing uploaded.

Available now

AWS EC2 Cost Estimator

Estimate on-demand, 1-year reserved, and 3-year reserved costs for EC2 instances across 7 instance families, 29 regions, and 4 operating systems. Includes EBS storage and a Graviton discount toggle. No AWS account needed.

Available now

US Reverse Sales Tax Calculator

Enter a receipt total and your US state or city to find the exact pre-tax price and tax paid. Uses the correct reverse formula for all 50 states plus major city rates. Runs in your browser, nothing uploaded.

Available now

Xfinity Speed Test & Plan Checker

Test your actual download and upload speeds in the browser, then compare results to Xfinity plan tiers. Shows whether you are getting the speeds you pay for and flags if your gap warrants a support call.

Available now

eBay Freight Shipping Estimator

Calculate the NMFC freight class and shipping distance zone for any oversized eBay listing. Works for domestic and international routes. Takes the guesswork out of freight listings worldwide.

Available now

US Capital Gains Tax Calculator

Calculate federal capital gains tax on stocks, ETFs, and other assets using 2025 IRS brackets. Covers short-term and long-term rates for all filing statuses, with NIIT surcharge and a bracket-by-bracket breakdown. Runs in your browser, nothing uploaded.

Available now

California Capital Gains Tax Calculator

Calculate combined federal and California state capital gains tax for 2025. California taxes every gain as ordinary income at up to 13.3% with no preferential long-term rate. See your federal and CA tax side by side, including NIIT and Mental Health Services Tax. Runs in your browser, nothing uploaded.

Available now

Home Sale Capital Gains Tax Calculator

Estimate federal capital gains tax when selling a primary residence or investment property. Applies the Section 121 exclusion (up to $500,000 for married couples), calculates adjusted cost basis, and handles depreciation recapture for rentals. Tax year 2025. Runs in your browser, nothing uploaded.

Available now

Tax-Loss Harvesting Calculator

Calculate how much federal capital gains tax you can offset by realizing losses on underperforming holdings. Applies IRS netting rules, the $3,000 ordinary income deduction cap, and capital loss carryforward. Flags wash-sale risk when you plan to repurchase within 30 days. Tax year 2025.

Available now

Capital Gains Holding Period Calculator

Enter a purchase date, cost basis, and current value to see the exact dollar difference between selling today at short-term rates versus waiting for long-term capital gains treatment. Shows the break-even date, days remaining, tax savings, and effective rate comparison. Federal 2025 IRS brackets.

Available now

AI Writing Pattern Analyzer

Check any text for four statistical markers of AI-generated writing: sentence length uniformity, vocabulary diversity, sentence burstiness, and AI filler phrase density. Returns a 0-100% likelihood score with a per-sentence heat map. Runs entirely in your browser, nothing uploaded.

Available now

Stripe Fee Calculator

Calculate the exact Stripe fee for any transaction. Covers online cards (2.9% + $0.30), international cards (4.4% + $0.30), ACH direct debit (0.8%, capped at $5), and in-person Terminal rates. Includes reverse mode: enter what you want to receive and get the invoice amount to charge.

Available now

Amazon FBA Fee Calculator

Calculate Amazon FBA fulfillment fees, referral fees, and monthly storage costs for any product. Enter dimensions, weight, and selling price to see your net revenue and margin. Covers all 2025 size tiers, dimensional weight, and the Q4 storage rate spike. Supports imperial and metric units.

Available now

Stamp Duty Calculator

Calculate UK Stamp Duty Land Tax (SDLT) for residential property purchases in England and Northern Ireland, or Australian state transfer duty across NSW, VIC, QLD, WA, SA, and ACT. Covers standard rates, first-time buyer relief, and the additional property surcharge, with a full band-by-band breakdown.

No tools match your search.

About UtilityForge

UtilityForge is a collection of free, browser-based calculators and reference tools built for professionals and everyday users who need accurate answers without signing up for anything. Every tool runs entirely client-side: no account, no data sent to any server, no tracking of inputs.

What the tools cover

The tools fall into five categories. Tax calculators cover US federal capital gains, California state tax, home sale capital gains exemptions, tax-loss harvesting optimisation, stamp duty for UK property buyers, and equivalent land transfer taxes for Australian states. Compliance tools cover the EU AI Act risk classification and the EU Consolidated Sanctions Entity List. Shipping and cost tools cover Stripe payment processing fees, eBay freight shipping estimates, NMFC freight class calculation, and catalytic converter repair cost ranges. Privacy and security tools cover browser privacy leak testing and Apple device privacy settings review. Business productivity tools cover AWS EC2 instance cost estimation, LinkedIn text formatting, and Amazon FBA fee calculation.

Each tool takes a set of inputs and returns a precise calculated result or a structured reference answer. There are no ads inside the tool interface and no results are stored or transmitted.

How tools are researched

Every tool is built against primary sources. US tax tools are calibrated against IRS publications and Revenue Procedures, which are revised annually. The capital gains rate tables reference IRS Revenue Procedure 2024-40 and are updated each time the IRS publishes new inflation-adjusted thresholds. UK tools reference HMRC guidance and legislation. The stamp duty calculator covers England, Wales, Scotland, and all six Australian states, naming the specific state revenue authority for each jurisdiction.

EU compliance tools cite the regulation text directly. The EU AI Act checker references Regulation (EU) 2024/1689 and includes enforcement dates from the official regulation timeline published by the European Commission. The EU sanctions checker uses the EU Consolidated Sanctions List as published in the Official Journal of the European Union.

Shipping and payment tools reference published rate schedules. The Stripe fee calculator uses rates from the official Stripe pricing page. The freight class calculator applies the National Motor Freight Classification density formula as published by the National Motor Freight Traffic Association (NMFTA).

Editorial standards

Each tool page includes a plain-language explanation of the calculation method, a worked example, a table of key rates or thresholds, and a FAQ section. Rate tables are reviewed when official rates change. The last-reviewed date on each tool page reflects when the rates and methodology were last verified against the primary source. No rate changes are published without human review against the source document.

Who built this

The site was built and is maintained by Stephen Milner, a software developer based in the UK. Stephen built UtilityForge after repeatedly landing on cluttered or inaccurate calculators when searching for specific financial and regulatory answers. The goal is straightforward: one question, one accurate answer, nothing else in the way.

When to use these tools

These tools give accurate answers to well-defined calculation questions. They are not a substitute for professional advice. Tax calculations depend on individual circumstances that a general-purpose calculator cannot fully capture: filing status, deductions, carryover losses, and state-specific rules all affect the final number. Use these tools to understand the mechanics and check estimates; use a qualified accountant or tax adviser for decisions with significant financial consequences.

The EU AI Act checker and EU sanctions tools are reference tools, not legal advice. Regulatory compliance for an organisation requires expert legal guidance specific to that organisation's activities and risk profile. Contact utilityforge.tools@gmail.com to report any inaccuracies.