About
About WebUtilsLab
WebUtilsLab is a collection of focused tools for everyday work. Most calculations and conversions run locally in your browser without an account.
Spreadsheet formulas, developer transformations, and bead-pattern image processing run in the browser wherever practical.
Calculators and formula builders use explicit rules, measurements, and tested formulas rather than AI guessing.
There is no sign-up, dashboard, saved history, subscription, or database-backed workspace.
What this site is for
- Building spreadsheet formulas and cleaning small text or CSV inputs.
- Estimating home-project, 3D-printing, and heat-press materials, costs, sizes, or placement.
- Converting images into fuse-bead patterns and using local-first developer utilities.
What this site is not
- It is not a substitute for a licensed professional or project-specific safety review.
- It is not a cloud file-storage or private document analysis service.
- It is not a SaaS product with accounts, saved files, or paid template downloads.
How tool quality is checked
Automated tests check deterministic formula strings and calculator outputs against known inputs. Formula pages pair sample data with stated results, while project calculators document units, assumptions, and rounding.
Site checks also verify that pages build, page addresses and structured metadata stay consistent, internal links resolve, and key browser interactions still work after changes. These checks do not replace project-specific professional review.
Supported boundaries
- Dynamic-array functions such as FILTER, UNIQUE, and XLOOKUP require a spreadsheet version that supports them.
- Excel and Google Sheets can differ in available functions, array behavior, separators, and external-workbook syntax; formula pages call out practical differences where they matter.
- Imported dates, text-formatted numbers, hidden spaces, and regional settings can change a result even when the formula itself is valid.
Report a tool problem
Use the contact page to report an incorrect result. Include the page URL, anonymized inputs, the result you received, and what you expected. Do not send private documents or images.