All Free Online Tools by ScholarTool
Search the complete catalogue by name, format or the problem you want to solve. Every entry stays connected to its most useful category—without sending you to an empty tool page.

Browse by category
Browse the full catalogue
No catalogue entries match that search. Try a format, outcome or category name.
Writing & Text
Rewrite, proofread, measure, clean and understand text for clearer everyday communication.
AI & Content
Plan, generate, adapt and repurpose content with task-specific assistance and responsible review.
SEO & GEO
Research queries, review pages, inspect technical signals and prepare content for search and answer engines.
YouTube
Research video ideas, improve metadata, work with transcripts and manage creator publishing tasks.
Organize, compress, convert, secure, extract and understand portable documents.
Images
Compress, resize, convert, inspect and prepare images for documents, websites and social channels.
Documents & Files
Convert and inspect documents, spreadsheets, structured data, archives and file properties.
Social Media
Create, adapt, measure and prepare posts for major social platforms and campaign workflows.
Marketing & Business
Shape names, positioning, campaigns, email and conversion copy around a clear customer problem.
Webmaster & Website
Inspect markup, domains, headers, links and browser-facing details that keep websites understandable.
Developer Tools
Format data, inspect encodings, test expressions and handle common code-adjacent transformations.
Academic & Research
Build citations, clean references, plan research questions and inspect academic writing and sources.
Audio & Video
Convert, trim, compress, subtitle and inspect media while balancing quality, compatibility and size.
How to use the ScholarTool directory
Start with an outcome—clean text, inspect a site, prepare a file, build a citation or adapt media—and search using the language you would use with a colleague. The index combines tool names, aliases, categories, task groups and common problem phrases so an exact product name is not required.
Narrow by workstream
Category filters separate writing, publishing, web, research and media contexts. Within every category hub, tools are divided again into functional subgroups that reflect the sequence of real work rather than an alphabetical dump.
Follow one canonical task
Some tools serve more than one category, such as an image-to-document workflow. ScholarTool keeps a single canonical tool identity and uses category placements as references, preventing duplicate pages and conflicting results.
Expect complete functionality
A catalogue entry becomes a root-level tool route only when the tool itself works and includes accurate guidance, privacy details, result handling and quality checks. Until then, discovery remains anchored to the category catalogue.
One practical collection, with more depth when you need it
ScholarTool Free Tools brings everyday writing, content, file and discovery workflows together. Continue to the main ScholarTool site for its wider technical tools collection.
Questions about the complete directory
Clear guidance for choosing and using the catalogue responsibly.
How many tools are listed in the directory?
The directory represents 507 unique canonical tools across 13 approved categories, with a small number appearing in more than one relevant category.
Why do some tools belong to more than one category?
A single task can support more than one workflow. Each shared tool still has one canonical identity rather than duplicate implementations.
How do I search all tools?
Enter a name, format or task phrase in the directory search. You can combine it with a category filter to narrow the results.
Can I search without sending my query elsewhere?
Yes. Catalogue search and filtering run locally in your browser and do not require an external search service.
Are catalogue cards functional tool pages?
The directory is a discovery catalogue. Only complete, working tools receive a canonical tool page; catalogue navigation never points to a nonfunctional page.
Which category should I choose for a file conversion?
Use PDF for portable documents, Images for picture formats, Documents & Files for office or structured data, and Audio & Video for media.
Where should I start with a website problem?
Use Webmaster & Website for inspection and network-facing tasks, SEO & GEO for discovery, or Developer Tools for code and data utilities.
How are new functional tools added?
A tool receives its root-level canonical page only after its interface, outputs, content, accessibility and quality checks are complete.