Observed arrival · 2026-09-06

SheetSum, a Korean browser toolbox for paperwork and everyday calculations

sheetsum.com Observed source

Editorial interest 82/100 Selection signal · not a rating of the site

It offers 110 no-signup tools for PDFs, images, audio, spreadsheets, wages, taxes, finance, documents, and other small administrative jobs.

Landing page captured for the 2026-09-06 issue.

Field notes

The site organizes 110 utilities into practical clusters rather than presenting a single-purpose calculator: 15 PDF tools, 25 image tools, 11 wage and labor calculators, and Korean tax and business-document workflows are visible on the homepage. Examples include browser-side PDF password setting, page comparison, EXIF removal, and quotation generation with 10% VAT and Korean written-out amounts. Audio processing is bounded at 20 MB or five minutes, and Excel/Google Sheets tools are identified as still in preparation.

Observed signals

Read the marks

Editorial observations of this landing page, not a rating.

○OpenPublic substance visible

✦PrettyNotable craft visible

●ProPolished or operationally mature

◎NicheUnusually specific use

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