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TheSpreadFix

Fix messy spreadsheets.

Get clean, ready-to-use data.

Upload an Excel or CSV file. TheSpreadFix finds duplicates, formatting problems, invalid values and data inconsistencies — then helps you fix them in minutes.

No sign-up needed. Your file stays in your browser.

12 free toolsFiles never leave your browserNo sign-up requiredUsed by agencies, CRM consultants & VAs

Try it with your own file

Drop a CSV or Excel file to get a Data Health Report in seconds.

Drop a CSV or Excel file here

.csv, .xlsx, .tsv

Your file stays on your device. It's read and cleaned in your browser — nothing is uploaded.

Know exactly what's wrong — without reading thousands of rows

The Data Health Report lists every problem with the affected column, how many rows it touches, real examples from your file and a recommended fix. Fix it automatically, review it, or ignore it.

We found 8 problems in your file.

Example report
  • 312 duplicate customershigh
  • 87 invalid email addresseshigh
  • 1,243 inconsistent phone numbersmedium
  • 43 rows missing a customer IDmedium
  • 2 date formats in one columnmedium
  • 4 spellings of the same countrylow
  • 19 empty rowsmedium
  • 7 columns with extra spaceslow

Problems we fix

Duplicates

Identical rows, repeated emails or IDs, and composite keys like first name + last name + phone. You choose which record to keep.

Remove duplicates →

Invalid & messy emails

Uppercase, stray spaces, “mailto:” prefixes and addresses that simply aren’t valid.

Clean email lists →

Inconsistent phone numbers

98765 43210, +91-98765-43210, 098765 43210 — converted to one international format for the country you choose.

Normalize phone numbers →

Mixed date formats

DD/MM/YYYY next to YYYY-MM-DD. Ambiguous dates like 03/04/2024 are never guessed — we ask.

Standardize dates →

Country variations

India, IN, IND and india become one consistent value.

CSV cleaner →

Spaces, blanks & broken headers

Leading/trailing spaces, empty rows and columns, blank or duplicate headers.

Fix CSV encoding & structure →

Beyond cleaning: compare, merge & validate

Compare files

Upload two versions and see what changed — added, removed, changed rows.

Try it free →

Merge files

Stack rows (append) or join by a key column, like VLOOKUP.

Try it free →

Validate data

Set rules per column (types, required, unique) and find every row that breaks them.

Try it free →

Column mapper

Rename columns to match HubSpot, Shopify or your CRM's import format.

Try it free →

How it works

  1. 1

    Upload

    Drop a CSV or Excel file. We detect the encoding, delimiter, sheet and header row for you.

  2. 2

    Review

    Get a Data Health Report: duplicates, invalid values and inconsistencies, with examples.

  3. 3

    Fix

    Pick the fixes you want and preview every change before anything is applied.

  4. 4

    Download

    Download a clean CSV or Excel file — and save the fixes as a recipe for next time.

Built for people who live in spreadsheets

Agencies, CRM consultants, virtual assistants, sales-ops and MIS teams — in India and worldwide.

CRM imports

Clean contact exports before importing into HubSpot, Zoho, Salesforce or Pipedrive — fewer rejected rows.

Lead lists

Deduplicate and standardise lead-gen exports before outreach, so nobody gets emailed twice.

E-commerce catalogues

Tidy product sheets: duplicate SKUs, stray spaces and inconsistent categories.

Operations & MIS reports

Merge-ready, consistent data for weekly reports — and a saved recipe to repeat it next week.

Private by design

Customer lists, leads and financial exports are sensitive. The free cleaner never uploads your file — the work happens in your browser.

How we handle your data
  • Browser-first: files are processed on your device
  • Saved files are private to your workspace — no public links
  • Downloads use short-lived signed links
  • Automatic deletion after your retention period
  • Your data is never used to train AI
  • Your original file is never modified

Simple pricing

Start free. Upgrade when your files get bigger.

Free

₹0India

$0 international

  • Clean files up to 500 rows
  • Data Health Report on any size file
  • Basic cleaning & duplicate removal
  • Save up to 5 files a month to your account
  • 3 saved recipes
Clean a File Free

Starter

Coming soon

₹499/moIndia

$9/mo international

  • Up to 25,000 rows per file
  • 100 files per month
  • Saved recipes
  • File history & versions
  • Advanced transformations

Pro

Coming soon

₹1,499/moIndia

$19/mo international

  • Up to 250,000 rows per file
  • Large file processing
  • Unlimited recipes
  • Scheduled workflows (planned)
  • Advanced validation

Business

Coming soon

₹3,999+/moIndia

$49+/mo international

  • 1M+ rows
  • Team members & shared recipes
  • API & webhooks (planned)
  • Audit logs

Paid plans aren't on sale yet. Everything marked Free works today. A one-time option for single files (₹99–₹299) is also planned.

Frequently asked questions

Is my file uploaded to your servers?

Not when you use the free cleaner. Your file is read and cleaned inside your browser and never leaves your device. If you create an account and choose to save a file to your workspace, it is stored privately, isolated to your workspace, and deleted automatically after your retention period.

Will TheSpreadFix change my data without telling me?

No. Every problem is listed in the Data Health Report and nothing is fixed until you choose. You see before/after examples for every change, and your original file is never modified.

Which files are supported?

CSV (any common delimiter and encoding, including UTF-8, UTF-16 and Windows-1252) and Excel .xlsx. Older .xls files need to be re-saved as .xlsx first.

How are phone numbers normalised?

You pick the country your numbers are from; numbers that already include a + country code are recognised automatically. The check is based on number length and prefixes — it can tell you a number is badly formatted, not whether it’s in service.

Do you use AI on my data?

No. All cleaning is done by deterministic rules, so the same file and settings always give the same result. Your files are never used to train AI models.

Is it free?

Yes — the cleaner is free for files up to 500 rows, with a full Data Health Report on files of any size. Paid plans for larger files are coming soon.

Turn messy spreadsheet data into clean, import-ready data.

Clean a File Free