Create File Duplication Finder Software

We need a file duplication finder that can compare up to 1 million files in multiple folders and find duplicate files using only a hash value. The file comparison must be able to find BOTH exact matches and near matches (selectable) of 50%, 55%, 60%, etc.

The software must be able to run on a Window server

The software must have the following attributes:


1. Must show progress in number of files to be processed, number of files processed for each step.

2. File comparisons must be based only on byte-by-byte hash comparison, ignoring file name, size, date, etc

3. Must be able to process a minimum of 50 files per second


1. Select a base folder

2. Must be able to choose individual or all sub-folders

3. The search should only be conducted once, and then the comparison must be done in the software database. (Create the hash once, then create the matches)


1. Select exact matching

2. Select a % match that is user selectable (ex. 65%, 72%, 100% match)

Display matches:

1. Must be able to display a list of all matched files, grouped together, alternating the background color of each group (white, light blue).

2. Must display items in the order of the base folder, then next level, then next, etc in alphabetical order

3. The files on the list must be able to be previewed from the list (all files will be in PDF)

4. Each file listed must show the full file path, file name, file size, file date, % match

Delete duplicates

1. Must be selectable to delete, copy, move, or create a spreadsheet that includes the full file path of ALL duplicates, except the first item in each set of duplicates (the spreadsheet should include all files, with an indicator for the files that are duplicates).

2. Must be able to conduct multiple operations, such as create a spreadsheet, and then move files.

3. Must be able to save results

Must provide the source files upon project completion

Project must be completed within 7 days

All communications must be replied to within 24 hours

Funds will be held in Freelancer Milestone

Check our feedback. We have been a Freelancer project poster for more than 6 years.

Færdigheder: .NET, C programmering, Java, Python, Visual Basic

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Om arbejdsgiveren:
( 76 bedømmelser ) Edina, United States

Projekt-ID: #6021989

27 freelancers are bidding on average $295 for this job


Hello Sir, We have experienced programmers [url removed, login to view] have worked in C# project. Here is the link of feedback "[url removed, login to view]" We would like to work with you & hope for the same. Mere

$394 USD in 10 dage
(97 bedømmelser)

Hi I read your requirements. I propose to deliver a desktop application in C# that will do matching. Ready to provide demos before accept the bid. Thanks

$526 USD in 3 dage
(79 bedømmelser)

Dear Client I hope you are doing well! We have gone through your requirement and we understand that you are looking for highly skilled, qualified, and experience Python expert for this project. We have worked Mere

$463 USD in 4 dage
(14 bedømmelser)

Hello, This is Sachin Bhatt from JSK Software, India. We are a software company established in 1998 specializing in development and implementation of enterprise scale desktop and web applications. I'm a Microsoft Mere

$400 USD in 7 dage
(34 bedømmelser)

i can write this software .

$250 USD in 3 dage
(62 bedømmelser)

Hi, I'm professional developer with years of experience in various areas especially those related to file management and processing. It's not a problem to perform file hash comparison but it cannot be used for partial Mere

$263 USD in 10 dage
(18 bedømmelser)

Hi, We’ve had a good look at your project description and we’re very interested in providing a solution. We are a professional development company head-quartered in Pakistan. If you like what you see and if our qu Mere

$250 USD in 7 dage
(22 bedømmelser)

Dear, I am familiar with Java programming. I am able to develop a GUI based software for your requirement. Please let me know. Thanks.

$250 USD in 7 dage
(16 bedømmelser)

Hi, This is Amit from Illuminatus Softwares,India. Expert in .NET development & have executed multiple projects in .NET both winforms and web technologies. Interested in your [url removed, login to view] to start. Also,We c Mere

$361 USD in 5 dage
(10 bedømmelser)

Hi, I (Myself a senior PHP, ASP.NET programmer using C# and VB) have a team having experience of more than 10 years in developing web and mobile applications. I have a team of expert programmers who write robust and bu Mere

$257 USD in 10 dage
(10 bedømmelser)

I will write this software in .Net / MsSQL (or MySQL) to do the file content comparison using bytes instead of text. Let me know when you are available for further discussion and finalization. Look forward to hear Mere

$444 USD in 15 dage
(59 bedømmelser)

Dear Sir, I'm quite interested by your project. I am programmer with sincere and capable. I have developed many project. Particular, I have rich experience in C++ project. I can provide you the best che Mere

$157 USD in 3 dage
(5 bedømmelser)

Hi, An ASP.NET,c#,vb ,SqlServer,JQuery,Javascript expert here. Please feel free to discuss the project with me so that i can wrap it up in a timely manner as per your requirements. Thanks, Murtaza

$350 USD in 5 dage
(8 bedømmelser)

Hello I am interest in your job. It is important to select suitable search and compare engine in order to do in a short time as you need. I'd like to know the files has what characteristics. I am waiting for your r Mere

$277 USD in 3 dage
(7 bedømmelser)

I have more than 10 years of experience in JAVA, I'm really fast coding so in case of any doubt on the specification I would contact you in a early stage. Thanks and best regards.

$155 USD in 3 dage
(9 bedømmelser)

Hi There, I'm an experienced programmer with more 5 years Python programming experience and 3 years system architecture experience. I know exactly about your project and can provide help on it. I did something like thi Mere

$255 USD in 7 dage
(9 bedømmelser)

Hi, We have people with expertise in JAVA. We always provide quality work as well as meet our deadlines as you can see from feedback reviews from other clients. We have already developed many applications on JAVA lik Mere

$140 USD in 5 dage
(8 bedømmelser)

Hi, I am an individual freelance, having more than 10yrs of exp in developing applications, window & web based, using .Net (C#.Net, Asp.Net (MVC), XML, WPF, WCF (Webservices) kendo ui, MySQL and SQL Server etc). Mere

$200 USD in 7 dage
(14 bedømmelser)

We've accomplished more 500+ projects just here on freelancer and 400+ on elance and many more local projects. We've gone through all your requirements and pretty much clear in all aspects and ready to take the job. We Mere

$198 USD in 3 dage
(1 bedømmelse)

Hi, I am a Perl Expert. I have done similar job for STR Comparisons. This can be achieved using Perl scripting. the module File::Find in Perl will be useful achieve your work. Just drop me a message for discus Mere

$55 USD in 7 dage
(1 bedømmelse)