Free validate software for mac

XMLSpear a powerful graphical tree editor, targeted to check, and correct XML files in a simple way.
You can assign a schema or DTD to validate the xml. For correcting not-wellformed xml a simple source editor is available.
Main features:
- Full schema validation using DOM3 in Xerces 2.8.0
- Tree editor for inserting and deleting nodes
- real-time validation while editing table and element view
- GUI components reflecting the xml schema
- Visual and textual feedback for errors
- Support for multi-document view
- Generation of complete xml documents from schema
- Opening and correction of not-well formed XML
- Plug-In interface for extending functionality
- Flexible encoding (character set) support
- Project viewer
- Integrated text and HTML plugin.
Enhancements:
Solved bugs:
- Incorrect display and behavior of default button in dialogs
- Double-clicking folders in the file tree to expand the tree, incidentally triggered an action to open a file.
- After deleting all file trees, a newly add tree only showed up after opening a source or restarting XMLSpear
- The filetree tab, which displays the top directory name, was not updated after a folder was selected as the new root.
- Small problems with the item names in the filetree popup menu in java 1.6
- Incorrect positions in the find-replace (especially concerning Windows users after a saving a document.
- Redundant extra line number in text editor
- Several XML formatting issues in the source view.
- Loss of linefeeds after editing text in tree tabel
- Incorrect behavior regarding to mixed elements with multiple text nodes
- Prefix initially not filled in dialog for inserting elements or attributes
New functionality:
- Move up possibility in file tree
- If you select a .xsd file in the tree, there will be a new option in the popupmenu to generate a XML instance from the selected schema
- A totally new find-replace dialog with the possibility to mark text.
- A find function for the tree table
- Improved support for mixed elements. You can switch to an advanced mode, where the textnodes will displayed in the tree.
- If a text has linefeeds or tabs you are not allowed editing the text in the table cell. This will be indicated by a special button which brings up a text editor.
- In edit mode, you will have a button in each cell to switch to a full functional tekst editor.
- If a value is part of an enumeration, it will be showed in the table. In previous versions the combobox was only showed in editMode.
- Xpath display of each selected element in the tree table view
- Insert and editing of CDATA and text nodes in the tree table view
- Improved schema support for enumerations and fixed values
- Unformat option in the XML source view
Updates:
- Alphabetical listing of elements in dialogs
- Collapse and Expand actions are now local to the selected node, instead of to the complete tree
- The warning message for large XML files is removed. If a XML file is displayed in the treetable, it will no longer be fully expanded. This will save a lot of load time. It is not a good idea to fully expand such a tree from the rootlevel. This will be slow or may cause an out-of-memory exception.

Validate at W3C is an AppleScript that gives you a contextual menu item in Opera to submit the current page to the W3Cs HTML validator.
Validate at W3C AppleScript based plug in for FinderPop.

Completly freeware.

QLumEdit is an ultimate Eulumdat file editor. QLumEdit allows you to edit existing files, create new files from templates, validate large number of Eulumdat files by simple click and export all data to HTML/PNG.

System requirements:
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Validator S.A.C. (formerly Validatelet) is a stand-alone, easy to install, version of the W3Cs HTML / XHTML Markup Validator for Mac OS X.
Validator S.A.C. is a normal Mac OS X application. No installation is required, just put Validator S.A.C. where you need it (hard drive, flash drive, CD-R, etc).
Validator S.A.C. is a tool that can validate local files, as well as pages on local web sites. Validate using the stand-alone Favelet, drag and drop files and URLs onto the applicaiton icon, or simply use File > Open.
Validate on an airplane or in the subway - no network needed.

Enhancements
- Updated to Validator 0.8.3

RegexTester is a very useful utility designed to validate one or more strings against a regular expression.
It is using the NSPredicate regular expression mechanism.

Usage
After launching RegexTester you’ll see two input fields.
The first one is for the regular expression you want to use for the validation.
The second fields is for the string you want to validate.

Entered values can be saved by clicking on the Save-Button. Saved values persist after you closed the application and can be erased by clicking Clear Regular Expressions and Clear Stings to Test respectively in the File-menu.

The validation process takes place every time you change either the regular expression or the string.

The traffic light indicators at the bottom of the application show you the current status of the validation. The left one shows you if the current selected string matches the selected regular expression.

The right indicator switches to green if all saved strings are matched by the selected regular expression.

Checksum Validator 1 is launched as a simple yet effective tool with which you can easily calculate and validate checksums (SHA-1 or MD5 digests) for files that you download (or will upload). By comparing a site's published checksum with your calculated checksum, you can verify that your download matches the site's official copy; free from corruption or tampering (unless the site's checksum was also tampered with).

Everything needed to calculate checksums is in Mac OS X, this is just much easier and quicker, and let's face it, the easier and faster, the more likely you will actually verify these downloads.