The best way to clean up your contact lists, CRM, and files: 6 options compared
Software, freelancers, AI tools, doing it yourself, or a done-for-you service. What each one costs, how you work with it, and where it falls short.
Updated September 28, 2026. Prices checked on this date.
The short answer
The best option for most small businesses and household leaders is Well Kept, a high-touch, done-for-you data cleaning service. You talk to a person instead of learning new software, it covers contacts, spreadsheets, and shared drives in one place, and it costs a flat $600 for up to 16,000 cells or 500 files.
Every business and household collects mess: contacts entered twice, file names that drift, spreadsheets with three columns that mean the same thing. There are more ways to clean it up than there used to be, and each is good at something. We are Well Kept, and we think we are the best choice for most small businesses and household leaders. The details below show why, including where another option fits better.
What are the options for cleaning up your data?
There are six common ways to do it. The biggest difference is how much you have to learn and do yourself. Only one option on this list lets you hand the job to a person who reviews every record, so you skip learning new software.
Option
Starting cost
Client effort
Best for
Well Kept
Best overall
$600
per cleaning
Low
A 20-minute walkthrough, then a few decisions we flag for you
Small businesses and household leaders who want it done right without learning new software
AI Chat Tools
ChatGPT, Claude, Gemini
Included in subscription
High
Writing prompts, overseeing web research and checking every answer; potential security risks if used thoughtlessly
Formula help and small fixes on non-sensitive sheets
Dedupe Software and In-built CRM Features
HubSpot, Salesforce, Zoho CRM, Dedupely, Insycle
Included in subscription
High
Cheap for a first pass, but your team has to review every match and maintains the rest
A complement to human review, not a replacement
Freelance Marketplaces
Upwork, Fiverr *cost represents median rate for data entry specialists
$13/hour
High
Billed by the hour, and you steer: hiring, briefing, access, and checking the work
Teams with strong technology leadership to scope, manage, and check the job; better suited for data entry vs. stewardship
OpenRefine
Highly specialized free desktop tool
$0
High
High learning curve and industry-agnostic approach to data
Teams with a strong in-house data analyst
Doing it yourself
Excel, Google Sheets, your CRM
$0
High
You do everything
Scrappy leaders with a small dataset and a free afternoon; not sustainable as data grows
Ranked from lowest to highest effort for you. Starting prices checked September 28, 2026.
What should you look for in a data cleaning option?
The key point: price matters less than who makes the judgment calls and whether the result stays clean. Check these six things.
Who decides what clean means
Software can merge two records with the same email. It cannot decide which of two phone numbers is current, or what your folder structure should be. Someone has to make those calls.
Whether it covers everything that is messy
Most tools handle CRM records only. Spreadsheets and shared drives are often where the worst mess lives.
What happens to data that cannot be confirmed
A missing email should be flagged for you, not filled with a plausible guess. Guessed data looks clean and is worse than a blank.
Who touches your data, and on what terms
Your contact list holds personal information about clients, friends, or family. Ask about NDAs, access levels, and a record of every change.
Whether it stays clean
A one-time cleanup decays as new data arrives. Plan for upkeep.
Whether you can predict the price
Hourly billing on an unknown mess is hard to budget. Flat or subscription pricing is easier.
How do the options compare?
1. Well Kept: best overall
Cost
$600 for up to 16,000 cells (about 2,000 contacts with 8 columns) or 500 files. $2,000 for up to 60,000 cells or 1,500 files. Larger jobs quoted. Monthly tidy $200 a month.
How you work with it
Talk to a person on a free 20-minute screen share. No new software to learn.
Well Kept is a done-for-you digital housekeeping service. Our team, with years of agency sales and operations experience managing large datasets, cleans up contact lists, CRMs, spreadsheets, and shared drives. You do not learn any new software. You tell us what is not working, and we figure it out. Every project starts with a free 20-minute walkthrough and a flat quote, then an intake where you agree on priorities and, for files, the folder structure and naming rules before anything moves.
Duplicates are merged, formats are fixed, and missing company websites and LinkedIn profiles are researched from public sources. Anything that cannot be confirmed is flagged for you, never guessed. You get a one-page guide for keeping the system clean and a written handoff listing every change.
Pros
+Nothing new to learn: you talk to a person, and we work inside your existing tools
+Covers contacts, spreadsheets, and shared drives, not only CRM records
+A person makes the judgment calls, and you approve the plan first
+Flat price set by size, quoted before work starts
+NDA before viewing anything, read-only access where possible, access removed when the job ends
+Optional monthly tidy keeps it clean
Cons
−Not instant: a deep clean starts with a walkthrough and intake
−Each deep clean covers one system, so a CRM and a shared drive are two projects
−Not software: between cleanings, your CRM's own duplicate tool can act as a second pair of eyes
Best for: Most small businesses and household leaders. It is the best choice when you want contacts, spreadsheets, or files cleaned properly by someone accountable, without learning a new tool.
2. AI chat tools
ChatGPT, Claude, Gemini
Cost
Included in a monthly subscription, often one you already have. ChatGPT Plus and Claude Pro are $20 a month, and Google AI Pro is $19.99.
How you work with it
Write prompts, upload or paste data, and check every value it returns.
AI chat tools can write formulas, suggest formats, and clean small tables you paste or upload. They are useful helpers.
Pros
+Fast for small, specific fixes
+Good at writing formulas and explaining steps
Cons
−Can fill gaps with values that look right and are wrong
−Uploading client data to a third-party tool may conflict with your privacy obligations
−Does not reach into your CRM or drive to make changes
−You still have to check everything
Best for: Formula help and small fixes on spreadsheets without sensitive data, with a person checking every value.
3. CRM and dedupe software
HubSpot, Salesforce, Zoho CRM, Dedupely, Insycle
Cost
Cheap to start. Duplicate tools come with paid CRM plans, from $14 per user per month for Zoho CRM Standard billed annually. In HubSpot, managing duplicates requires a Professional or Enterprise subscription. Add-on apps like Dedupely start at $40 a month, and Insycle at $100 a month billed annually.
How you work with it
Learn each tool, set up matching rules, and review every suggested merge.
CRMs can spot likely duplicates and let you merge them, and add-on apps like Dedupely and Insycle run matching rules in bulk. They are inexpensive, but they only suggest. Your team still reviews the matches, maintains the rules, and cleans everything the software cannot reach.
Pros
+Inexpensive to start
+Built into, or connected to, the CRM you use
+Quick at spotting obvious duplicates in large record counts
Cons
−A lot of oversight: someone on your team reviews every match and owns the rules
−CRM records only. No spreadsheets outside the CRM, and no files
−Rules match patterns. They cannot confirm facts or research what is missing
−The better tools often sit behind a higher subscription tier
Best for: A complement to human review, not a replacement. We would not recommend relying on software alone.
4. Freelance marketplaces
Upwork, Fiverr
Cost
Hourly. Upwork lists a median rate of $13 an hour for data entry specialists, and you pay for every hour, including the back-and-forth.
How you work with it
Write a job post, vet applicants, arrange an NDA and access, steer the work, and check the result.
Sites like Upwork let you post a job and hire a freelancer. For a precisely defined task, like reformatting one column across a file, this can be fast and inexpensive.
Pros
+Low hourly rates are available
+Large pool of people
+Good for tasks you can spell out exactly
Cons
−You find, vet, and steer the person, and every hour of their learning curve is billed
−NDAs, access levels, and data handling are yours to arrange
−Quality and judgment vary widely
−Your clients' personal information goes to someone you have not met
Best for: Teams with strong technology leadership who can scope the job, arrange secure access, and check the result.
5. OpenRefine
Cost
Free and open source.
How you work with it
Install and learn the tool, export your data, clean it, and re-import it.
OpenRefine is a free desktop tool for cleaning and transforming messy data. It runs on your own computer, so your data stays on your machine.
Pros
+Free
+Powerful for clustering near-duplicates and reshaping data
+Data stays on your computer
Cons
−A real learning curve
−You export, clean, and re-import, which adds steps and risk
−Not built for organizing files and folders
Best for: Teams with a strong in-house data analyst who has time to learn and run it.
6. Doing it yourself
Cost
Free in dollars. Paid in hours.
How you work with it
Learn the sorting, filtering, and cleanup features of each tool, then do the work.
Sorting, filtering, and fixing by hand in Excel, Google Sheets, or your CRM. For a few hundred rows and a clear idea of what you want, this works.
Pros
+No cost beyond time
+You know your data better than anyone
Cons
−Slow, and usually done in pieces between other work
−Easy to apply rules inconsistently across thousands of rows
−Files and folders rarely get the same attention
Best for: Short lists, a free afternoon, and a clear idea of what you want.
Which option is best for you?
In summary: for most small businesses and household leaders, Well Kept is the best choice. Software can help, but it works best as a complement to a person who reviews the data and makes the calls. Here is how it breaks down by situation.
You want contacts, spreadsheets, or files cleaned properly, and you do not want to learn new software
Well Kept. This is the best fit for most small businesses and household leaders.
You have a strong in-house data analyst with time to spare
OpenRefine, run by your analyst.
You have strong technology leadership who can scope the work, arrange secure access, and check the result
A freelancer, with a clear brief and oversight from your Technical Director.
You already pay for a CRM with duplicate tools, or a dedupe app
Use them as a second pair of eyes. They suggest matches; a person should still check their work and make data stewardship decisions.
You have a small dataset and a free afternoon or weekend
Do it yourself. An AI tool can help write formulas.
You are about to switch systems or roll out AI tools
By any method, clean the data first. Moving or automating messy data spreads the mess.
See what your cleanup would cost
A free 20-minute walkthrough on a screen share. You leave with a flat quote.
What is the best way to clean up a CRM or contact list?
For most small businesses and household leaders, the best way is a done-for-you service like Well Kept. You talk to a person instead of learning new software, a person makes the judgment calls that tools cannot, and anything that cannot be confirmed is flagged rather than guessed. Built-in CRM tools can then help keep it that way, with a person still making the calls.
How much does it cost to clean a CRM?
It ranges from free if you do it yourself, to software subscriptions starting around $40 a month, to project pricing. Freelancers bill by the hour; Upwork lists a median of $13 an hour for data entry specialists. Well Kept charges $600 for up to 16,000 cells, about 2,000 contacts with 8 columns, and $2,000 for up to 60,000 cells, with larger jobs quoted after a free walkthrough.
Is data cleaning software enough?
Not on its own. Software matches patterns and suggests merges. It cannot confirm which of two conflicting values is correct, research missing details, or design a folder structure. Treat CRM duplicate tools and dedupe apps as a complement to human review, not a replacement.
Can I use ChatGPT or another AI tool to clean my data?
For small fixes and formulas, yes. Check every value it fills in, since AI tools can produce plausible but wrong answers, and check your privacy obligations before uploading client data.