Excel and Google Sheets Formula Generator
Build dependable lookup, filter and counting formulas from clear inputs instead of guessing spreadsheet syntax.
Runs in your browserOpen tool →Private spreadsheet tools — no upload
Compare Excel sheets, find missing rows and merge CSV files in your browser
ReconNimble gives HR, IT, Finance, Admin and Operations teams fast spreadsheet utilities that keep source files on the device. When you need saved jobs, multi-source matching, fuzzy review and an audit trail, move into the separate logged-in Reconcile workspace.
- 100% private public tools: files are processed in your browser
- No file-upload POST path on the free tools surface
- Authenticated Reconcile remains ad-free and keeps saved-job audit evidence
Traffic tools with real utility
Start with the spreadsheet task you have right now
Each public tool combines a live browser workspace with an explanation, sample file, FAQ and links to related workflows.
Formula Health Checker
Inspect a pasted formula or the first worksheet in an XLSX file for broken references, fragile lookups and performance risks.
Runs in your browserOpen tool →Find Missing Records Between Two Files
Find keys that exist in one spreadsheet but not the other, entirely in your browser.
Runs in your browserOpen tool →Remove Duplicate Rows from CSV or Excel
Remove repeated spreadsheet rows by a selected key and download a clean file locally.
Runs in your browserOpen tool →Compare Two Lists
Find values that appear in both lists, only in the first list or only in the second list after safe normalization.
Runs in your browserOpen tool →Remove Duplicates from a List
Remove repeated lines while preserving the first occurrence and the original readable capitalization of each unique value.
Runs in your browserOpen tool →Process locally
CSV, TSV, JSON and supported XLSX tables are parsed in browser memory. Downloads are generated with browser Blob APIs.
Publish only by choice
Tool results stay local unless you explicitly choose Publish result. A public link contains only the limited summary/result rows you approved, never the original files.
Escalate when needed
Use Reconcile for saved jobs, two-to-five-source comparisons, plan-gated fuzzy matching, profiles, server exports, resolutions and audit history.
Screenshot-worthy results
See the records that need action, not another wall of formulas
8,412Matched
46Missing
18Duplicates
21Partial
27Conflicts
36hEstimated work saved