Price
GBP29One scored, annotated export for the CSV you preview.
Lead List QA
Show the damage before you pay to clean the list.
ListSift lets you paste a lead CSV, inspect invalid emails, weak domains, and duplicates, then pay once to unlock a cleaned export with confidence scores, suggested fixes, and duplicate groups. Version 1 is a simple one-off buyer flow: no subscription, no sales call, no account setup.
Payment
Hosted by StripeCard details stay inside Stripe Checkout, not this app.
Output
Instant CSV releaseThe download unlocks only after the paid session is verified.
Paid Output Sample
What the GBP29 export adds.
The preview proves there is list damage. The paid file turns that into an annotated handoff CSV: each row gets a score, a plain-English reason, a suggested fix, and duplicate grouping.
19 columns One CSV No account
| email_normalized | confidence_score | recommended_action | issue_summary | suggested_fix | dedupe_group |
|---|---|---|---|---|---|
| alice@acme.io | 100 | keep | No issues found | No action needed. | - |
| sales@acme.io | 45 | review | risky shared inbox; duplicate email | Keep only one row from this duplicate group. | email:sales@acme.io |
| bob@@acme.io | 10 | remove | invalid email; missing domain | Find a replacement email or remove the row before sending. | - |
alice@acme.io100
Action: keep
Why: No issues found.
Fix: No action needed.
sales@acme.io45
Action: review
Why: risky shared inbox; duplicate email.
Fix: Keep only one row from this duplicate group.
bob@@acme.io10
Action: remove
Why: invalid email; missing domain.
Fix: Find a replacement email or remove the row.
Buyer-friendly reasons make the cleanup defensible without explaining raw issue codes.
Suggested fixes tell the operator whether to remove, replace, dedupe, or keep each row.
Stable row hashes and duplicate groups make it easier to track decisions after export.
Interactive Tool
Run the live version-1 preview in the browser.
This uses the live ListSift preview flow and the same server-side hygiene rules that power the paid export.
Input CSV
Paste a lead list or load a UTF-8 CSV file to see what would make a buyer hesitate before delivery.
Version 1 rules
- Sample CSV loads automatically so the tool is usable on first visit.
- The free preview shows counts plus a flagged-row sample before checkout.
- The paid export adds confidence scores, plain-English reasons, suggested fixes, and duplicate groups.
- This version is a one-off cleanup flow for the exact CSV you inspect here.
Preview Result
The preview should make the quality gap obvious enough that the paid export feels concrete, not speculative.
Flagged rows
Paid export
Unlock the full cleaned CSV for GBP29
Buy a one-off cleaned export for this exact CSV. The download adds row-by-row confidence scores, buyer-friendly reasons, suggested fixes, duplicate groups, and stable row hashes for QA handoff.
GBP29
One cleaned export. No subscription.
Hosted Stripe checkout No card storage here Download released after verification
Free preview
- Issue counts
- Flagged row sample
- No full CSV download
Unlocked export
- Full cleaned CSV
- Confidence score for every row
- Plain-English reason and suggested fix
- Duplicate grouping for quick dedupe decisions
Run a preview first.
| Row | Domain | Status | Issues | Action | |
|---|---|---|---|---|---|
| Run a preview to inspect flagged rows. | |||||
The preview intentionally shows only a slice of flagged rows. The paid export returns the full cleaned CSV with confidence scores, reasons, suggested fixes, and duplicate groups for every row.