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Mergely vs UltraCompare

Mergely

mergely.com

UltraCompare

ultraedit.com

Side by side

FigureMergelyUltraCompare
Price fromFree$8.33/mo
Free planYes—
Free trial—Yes
Open source——
WebYes—
Windows—Yes
macOS—Yes
Linux—Yes
APIYes—
Self-hostedYes—
Plans published24
Spec score · File Comparison Software7.4 (#25)8.3 (#7)
Spec score · Diff and Merge Tools7.4 (#23)8.3 (#9)
IntegrationsThe documentation recommends the React component and also describes CDN and webpack usage; it says the Angular component is out of date.It integrates as a diff and merge tool for Git and also supports Subversion and CVS.
PurposeMergely is a browser based diff and merge editor and JavaScript library for comparing and merging text.UltraCompare compares and merges text files, folders, and documents including Word, Excel, and PDF.
SupportThe maker directs users to GitHub issues for support, and the CDL includes one year of personal email support.The maker offers an AI assistant for feature, setup, workflow, or licensing help, support cases, FAQs, documentation, and a community run forum.

Plans

Mergely

  • Open-source licenseFree
  • Closed Distribution License (CDL)Priced on request

Mergely pricing →

UltraCompare

  • UltraEdit Core Subscription$99.95 a year
  • UltraEdit Enterprise Subscription$119.95 a year
  • UltraEdit Core Perpetual$179.95, paid once
  • UltraEdit Enterprise Perpetual$249.95, paid once

UltraCompare pricing →

In their own words

Mergely

Mergely is a browser-based diff and merge editor plus a JavaScript library for comparing two text documents. It places documents side by side and marks additions, deletions and changes. Differences are computed in the browser with JavaScript, without server calls for the comparison. The maker says imported documents stay in the browser unless saved or shared; saved diffs are public to anyone with the link and can be managed there. Developers can embed the library in web applications through its API. Documentation recommends the React component and describes CDN and webpack use, while the Angular component is out of date. Options include ignoring whitespace, case or accented characters, line numbers, wrapping and sidebars. The API can merge a whole document or a selected change across sides. Firefox, Chrome, Edge and Safari are supported. The open-source release is free under GPL, LGPL and MPL licenses; a Closed Distribution License is available by contacting the maker.

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UltraCompare

UltraCompare compares and merges files, folders, and documents, including Word, Excel, and PDF. It can show two or three files side by side and lets users merge differences visually. Folder tools compare, merge, and synchronize directory structures, with rule-based automation available. For spreadsheets and other tabular data, it can compare and merge cells, rows, or columns, including across multiple Excel sheets. UltraCompare works as a diff and merge tool with Git, Subversion, and CVS. It can compare remote files over FTP or SFTP and by URL, and folders over FTP and network shares. ZIP, RAR, and JAR contents can be compared without extraction. Additional tools include highlighting for characters, words, or lines; options to ignore whitespace or case; editable comparisons; saved sessions; and HTML or text reports. The maker lists Windows, macOS, and Linux, while a fully functional Windows trial includes all features for 30 days. There is no free plan. Subscriptions start at $99.95 a year for Core or $119.95 a year for Enterprise; perpetual options cost 179.95 USD or 249.95 USD once.

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