Browse free open source Diff Tools and projects below. Use the toggles on the left to filter open source Diff Tools by OS, license, language, programming language, and project status.

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  • 1
    WinMerge

    WinMerge

    Windows visual diff and merge for files and directories

    WinMerge is a Windows tool for visual difference display and merging, for both files and directories. It is highly useful for determining what has changed between file versions, and then merging those changes. WinMerge has Unicode support, Flexible syntax coloring editor, Visual SourceSafe integration, and Windows Shell integration. Regexp filtering for filenames and lines. Side-by-side line difference and highlights differences inside lines. A file map shows the overall file differences in a location pane. The user interface is translated into several languages.
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    Downloads: 35,277 This Week
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  • 2
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    Downloads: 2,469 This Week
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  • 3
    tkdiff

    tkdiff

    Side-by-side diff viewer, editor and merge preparer

    tkdiff is a graphical front end to the diff program. It provides a side-by-side view of the differences between two text files, along with several innovative features such as diff bookmarks, a graphical map of differences for quick navigation, and a facility for slicing diff regions to achieve exactly the merge output desired.
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    Downloads: 184 This Week
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  • 4
    External Compare - Eclipse Plugin

    External Compare - Eclipse Plugin

    Launch an external diff tool like WinMerge in Eclipse

    Eclipse comes with an internal diff / compare editor, but if you prefer a third-party one, this plugin opens an external merge or diff tool for you. After you open two versions of a file in the internal eclipse compare editor, this plugin either opens an external diff tool automatically or you can choose that this plugin opens the external diff tool after you press a button in the toolbar of the internal compare editor. Furthermore the plugin can (optional) format java code before the compare. This simplifies the compare if the code of 2 versions of a file is different formatted.
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    Downloads: 118 This Week
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    All-in-One Payroll and HR Platform

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  • 5
    Platform-independent PostgreSQL diff tool that is useful for schema upgrades. The tool compares two schema dump files and creates output file that can be used for upgrade of old schema. Project sources and issue tracker has been moved to https://github.com/fordfrog/apgdiff.
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    Downloads: 14 This Week
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  • 6
    WebChangeMonitor

    WebChangeMonitor

    Monitors a number of web pages for changes.

    Monitors a number of web pages and tracks changes based on the content of the web pages. Allows to monitor several protocols, including HTTP and HTTPS. Allows to view and record differences. Available for Win7/10, Linux and others.
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    Downloads: 41 This Week
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  • 7
    External diff Tool is an Eclipse plugin that allows the launch of an external diff tool for file compares rather than the default built-in Eclipse diff tool. This plugin doesn't replace the built-in Eclipse tool. It only adds a new menu item to the GUI.
    Downloads: 3 This Week
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  • 8
    A cross-platform file diff and directory diff Tool. Also contains an SCM project which uses the stand-alone tool. Go to https://vmaster.sourceforge.net to see screenshots or to start the diff tool.
    Downloads: 4 This Week
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  • 9
    JMeld is a visual diff and merge tool. It is build to be fast with large files and runs on any operating system. Development on sourceforge has stopped. The project continues at github. https://github.com/MrKuip/JMeld
    Downloads: 1 This Week
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    Propelling Payments for Software Platforms

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  • 10
    A source code diff tool. Adapted from cvsweb, it makes code inspection easy. It also provides another diff tool with which you can either compare two files or two directories recursively. It is written in perl and uses String::Ediff for finer diff.
    Downloads: 2 This Week
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  • 11
    GSGui is a graphical wrapper for Ghostscript for converting PDF files to the old PDF format (ver 1.4) for Amazon Kindle 4 ------------->>> Java 8 and Ghostscript must be installed on your system before use
    Downloads: 2 This Week
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  • 12
    If you a developer you can compare two mdb ( Access 2000 ) databases. And the old database will be upgraded with the new one. Copy the CompareData.mdb and 'newdatabase.mdb' to your 'olddatabase.mdb' directory. And run this application.
    Downloads: 2 This Week
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  • 13

    CAD Diff

    Visual comparison tool for difference in image and CAD files.

    Visual comparison tool for difference in image and CAD files. http://soft.postpdm.com/
    Downloads: 1 This Week
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  • 14

    cfcfg

    Yet another Linux kernel configuration comparator

    Produces a succinct comparison of two Linux kernel configuration files, showing added, removed and changed settings, in an indented layout reflecting the configurator menus. The resulting text file is coloured when the output is to a terminal; the colours can be retained when redirecting the output to a file or pipe. Now comes with a program to extract configuration variable names and their prompts from their kernel build system, to create a symbol table. The comparison program can use this table to further annotate its output. This program can also be used to create a commented "pretty-print" of a kernel configuration by comparing it with an empty one such as /dev/null.
    Downloads: 1 This Week
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  • 15
    The Collaborative Testing System (CTS) tests parallel software using various implementations of MPI. It works on multiple platforms and supports batch systems including LSF, LCRM and workstations without a batch system. It includes a numerical diff tool.
    Downloads: 0 This Week
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  • 16

    Duck2Dox

    Convert Autoduck markup to Doxygen

    This Python script is designed to convert Autoduck source code markup in C++ style comments to Doxygen style markup. The output is ready to be used with Doxygen. The output directory is a mirror of the input directory (the directory is copied before any conversion takes place) so the input remains untouched. The output directory only contains code that has been converted, and all non-supported files are removed from the output directory. You can then use a directory diff tool, like WinMerge, to review the changes. See http://www.literateprogramming.com/autoduck.pdf or http://helpmaster.info/hlp-developmentaids-autoduck.htm for information about Autoduck. See www.doxygen.org for information about Doxygen.
    Downloads: 0 This Week
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  • 17
    MyDBDiff is an database diff tool for MySQL. It reports differences between two database schemas.
    Downloads: 0 This Week
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  • 18
    Php-pastebin

    Php-pastebin

    Pastebin is here to help you collaborate on debugging code snippets

    pastebin is here to help you collaborate on debugging code snippets. If you're not familiar with the idea, most people use it like this: submit a code fragment to pastebin, getting a url like hxxp://yoursite.com/1234, paste the url into an IRC or IM conversation, someone responds by reading and perhaps submitting a modification of your code, you then view the modification, maybe using the built in diff tool to help locate the changes
    Downloads: 0 This Week
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  • 19
    Provides tools, supporting quality management or quality assurance for software: Assessment execution (ISO 15504 (SPiCE), AutomotiveSPiCE, CMMi), diff tool calculating sizes (SLoC) of diffs, identification of conditional compilation, and more.
    Downloads: 0 This Week
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  • 20
    An SVG Wiki and Difference tool to allow for collaboration between artists, developers and casual users with easy to use tools.
    Downloads: 0 This Week
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  • 21
    Subversion repository server side changes notifier desktop application for Windows family platforms. Written completely in .NET 3.5 and WPF. It notifies about commits made on the repository and shows what that changes are. Lightweight and simple.
    Downloads: 0 This Week
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  • 22

    TclDiff

    A Tcl extension providing a [diff] command

    Tcldiff is a Tcl extension implementing a [diff] command for Tcl scripts. It implements the options of the OpenBSD diff tool and can compare files as well as directories.
    Downloads: 0 This Week
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  • 23
    Toldiff is a diff tool that allows tolerable (insignificant) differences between two files to be suppressed showing only the important ones. The tolerable differences are recorded running the tool with an appropriate command line flag.
    Downloads: 0 This Week
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  • 24
    WinMergeX is a branch of the WinMerge visual diff tool. It is a MS-Windows diff tool allowing merge of individual files.
    Downloads: 0 This Week
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  • 25
    XinDiff is a diff utility implementing WinDiff like GUI by an improved LCS algorithm. The key feature in addition to WinDiff is in-place comments for code review.
    Downloads: 0 This Week
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Open Source Diff Tools Guide

Open source diff tools are software applications that are available to the public for free. The primary purpose of these tools is to compare two different versions of a document, file or codebase and identify differences between them. This allows developers to easily track changes over time and ensure that modifications do not conflict with existing content.

These open source diff tools typically provide an easy-to-use graphical interface that makes comparison of documents painless and straightforward. Users can visually inspect differences between files, making it easier to spot errors or omissions quickly. In some cases, they can even record multiple outcomes based on user preferences so that users don't have to continually rerun the same comparison in order to get the desired result.

Diff tools can also be used for syntactical comparisons such as comparing programming languages or markup languages like HTML and XML, identifying places where one language might conflict with another. That makes it possible for developers working with large projects involving many different programming languages to more quickly identify issues amidst the chaos created by having all those different pieces mixed together at once.

The benefits of open source diff tools go beyond just their utilitarian nature though - because they are open source apps, developers can look into the underlying code powering them and make modifications should their needs demand it - allowing for fine-grained control over how diffing is done as well as providing bugfixes if any arise down the line along with feature updates made available periodically by its maintainers or community members submitting pull requests with new features added on top of what was already there before.

Features of Open Source Diff Tools

  • File Comparison: Open source diff tools allow users to compare files side-by-side, providing visual feedback on the differences in content between them. This can be useful for identifying errors and discrepancies, as well as aiding in code review processes.
  • Syntax Highlighting: Diff tools provide syntax highlighting for more thorough inspection and ease of understanding when comparing two files. This helps in quickly locating text that is different from one file to another by color coding each set of changes found.
  • Patch Generation: Diff tools are able to generate “patches” or “diffs” that represent the difference between files, allowing developers to quickly identify what code has been changed or added since a certain point in time.
  • Context Viewing: When reviewing files with a diff tool, users have the ability to switch back and forth between different views such as full context view, line numbers view and much more to narrow down their search.
  • Version Control/Tracking: Diff tools also provide version control capabilities which allows developers to track and manage changes over time while also keeping an audit trail using version identifiers such as timestamps or unique identifiers.
  • Filtering Options: Diff tools offer a range of filtering options which help make comparison tasks easier by allowing users to select what types of content should be included in their comparisons and reports (for example lines beginning with # could be filtered out).

Types of Open Source Diff Tools

  • Text Comparison Tools: These open source diff tools are used to compare two versions of a text file and provide a clear view of the differences between them. They often feature colored highlighting of any changes, and offer features such as line-by-line navigation and syntax highlighting for programming languages.
  • Version Control Diff Tools: This type of open source diff tool is designed specifically for version control systems like Git or Subversion, allowing developers to quickly see the difference between their current working copy and the repository's stored version.
  • Binary File Diff Tools: Used when comparing binary files that don't contain human-readable text, binary file diffing tools work by analyzing how individual bytes have changed over time inside the two versions being compared.
  • Merge Conflicts Tools: This is more specific type of open source diff tool that helps teams debug merge conflicts in their codebase. Rather than a simple comparison between two versions, they provide automated conflict resolution while still offering manual editing options if needed.
  • Image Comparison Tools: Visualizing changes in images can be incredibly useful when tracking down bugs or making sure content remains consistent over time; this type of open source diff tool will analyze both pixels and metadata to spot discrepancies between multiple image versions.

Open Source Diff Tools Advantages

  1. Cost-effectiveness: Open source diff tools are free to use, which means that users don’t need to invest in purchase or licensing costs. This makes them an attractive option for a wide range of users, from casual developers to large enterprise teams.
  2. High Functionality: Open source diff tools offer significant functionality for the user, including integration with other development tools and support for multiple programming languages. This makes them highly versatile and allows developers to customize their solutions according to their individual needs.
  3. Community Support: By using open source diff tools, users have access to a wide community of likeminded peers who can provide help and advice if needed. Contributors regularly update open source applications with new features and bug fixes. This helps ensure that the tool is always “up-to-date” and can address any issues that arise quickly.
  4. Enhanced Security: The codebase behind open source diff tools is often reviewed by many different eyes, significantly improving its security profile compared with proprietary systems. Additionally, since anyone can see the underlying code, malicious intentions are less likely to go unnoticed than might be the case with closed-source alternatives.

Types of Users That Use Open Source Diff Tools

  • Developers: Developers are individuals or teams that use open source diff tools for development tasks like code comparison, file merging, and conflict resolution.
  • System Administrators: System administrators utilize open source diff tools to optimize their systems with the most up-to-date software versions, to locate potential inconsistencies in files and programs they manage, and to track the changes made to the system over time.
  • Bug Identifiers: These users leverage open source diff tools to identify possible bugs by comparing code sources with different versions of applications.
  • Quality Assurance Teams: Quality assurance specialists can rely on open source diff tools to ensure compliance with standards while modifying existing code bases or creating new ones.
  • Project Managers: Project managers often use open source diff tools as part of a project workflow in order to monitor processes, stay up-to-date on project progress, and collaborate between multiple stakeholders more effectively.
  • Educators & Students: Diff technologies enable students and educators alike to quickly compare notes, papers, tutorials and documents not just line by line but also granularly down at character level. This can help both teachers spot plagiarism more efficiently as well as aid students in finding content similarities for less time consuming research work.

How Much Do Open Source Diff Tools Cost?

Open source diff tools are available for free. This means that there is no cost associated with using an open source diff tool. Using an open source diff tool can be a great asset to any project, as it allows users to quickly and easily compare files and track changes between versions of the same file. Open source diff tools also provide a variety of features and benefits, such as syntax highlighting, graphical comparison results, and support for several different file formats. Additionally, many open-source diff tools come with easy-to-use interfaces that allow even those unfamiliar with the software to get up and running quickly. With all these advantages included in the price of zero dollars, it's no wonder why so many developers rely on open source diff tools to help keep their projects organized.

What Software Do Open Source Diff Tools Integrate With?

Open source diff tools are software applications that enable users to compare two different sets of data and detect any discrepancies between them. These tools can integrate with a variety of types of software, including version control systems, text editors, word processors, spreadsheets, and web browsers. Version control systems allow users to track changes made in the codebase over time and manage multiple versions of a project easily. Text editors such as Vim or Notepad++ provide an interface for writing/editing code and can be used in conjunction with diff tools to facilitate debugging or make other corrections quickly. Word processors like Microsoft Word or LibreOffice Writer are commonly used to write documents that may need to be compared using diff tools when revisions have been made. Spreadsheets like Microsoft Excel or Google Sheets are often used for manipulating large datasets or performing calculations on tabular data; these programs also have features that allow comparison between multiple versions of workbooks using open source diff tools. Finally, web browsers such as Google Chrome or Mozilla Firefox can incorporate diff tools into their feature set for tracking changes between webpages from different sources.

Trends Related to Open Source Diff Tools

  1. Increased Efficiency: Open source diff tools are designed to streamline and automate various tasks, allowing developers to be more efficient and productive. This can lead to increased productivity and improved collaboration.
  2. Reduced Costs: Since open source diff tools are free or have a low cost, they can reduce the overall cost of development. This is especially helpful for small teams or individual developers who may not have the budget for expensive commercial solutions.
  3. Improved Quality: Open source diff tools often come with support for automated tests, which can help ensure that code changes do not introduce bugs or security vulnerabilities. This can result in improved quality of code and a better user experience.
  4. Greater Flexibility: With open source diff tools, developers can customize and extend their functionality in ways that would not be possible with a closed-source alternative. This makes them ideal for tackling challenging problems or developing innovative solutions.
  5. Enhanced Collaboration: Open source diff tools make it easier for multiple people to collaborate on projects, since changes can easily be tracked and discussed in real-time. This promotes communication and collaboration between team members, leading to better results.

How Users Can Get Started With Open Source Diff Tools

Getting started with using open source diff tools is easy and straightforward. Here are some steps for getting started:

  1. First, users should do some research on which open source diff tool best suits their needs. There are many available for a variety of programming languages, so it’s important to choose one that offers the features you need. Github is an excellent resource for researching different options and their features.
  2. Once you have chosen your diff tool, users can then download the software from its website or repository and install it on their computer. Be sure to follow all installation instructions carefully as this will ensure that the program runs correctly when used.
  3. After the software has been installed, users should familiarize themselves with how to use it by reading through the user manual or tutorials provided by the developers of the program. This will help make sure that they understand how to properly use all of its features and be able to get the most out of the program.
  4. When users feel ready to start working with their new open source diff tool, they can begin creating files in whatever language they programmed in originally and track any changes made over time using their chosen software (like Git). This will allow them easily spot differences between versions and quickly resolve any conflicts that may arise during development or collaboration processes.
  5. The last step is actually using their newly-learned skill set. With practice, becoming proficient at using an open source diff tool becomes easier over time as users become more comfortable understanding what data points each feature gives them about changes made within code files – making problem solving much simpler.