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Explore Tool Base Categories
Browse free online tools by category. Each category page includes an introduction, searchable tool listing, and links to related utilities.
Image Tools
Convert, compress, resize, crop, edit, and optimize images online.
46 tools
PDF Tools
Convert, compress, merge, split, extract, and process PDF files.
21 tools
Document & Data Tools
Convert documents and structured data between DOCX, PDF, TXT, Markdown, CSV, JSON, XML, YAML, and more.
20 tools
Audio Tools
Convert, trim, compress, edit, and process audio files.
20 tools
Video Tools
Convert, compress, trim, resize, extract, and process video files.
20 tools
Text Tools
Count, clean, format, transform, compare, and generate text.
30 tools
Developer Tools
Format, validate, encode, decode, test, and transform developer data and code.
25 tools
Security & Encoding
Generate hashes, encode and decode data, create UUIDs, and work with technical formats.
25 tools
Calculators & Converters
Financial, math, date, construction, electrical, transportation, and everyday conversion calculators.
191 tools
Specialized Calculators
Focused estimators for totaled-car value, property capital gains, GPA, AP scores, car loans, commissions, retirement projections, and tree-removal costs.
20 tools
Generators
Generate usernames, titles, CSS, meta tags, robots.txt, sitemaps, mock data, cron expressions, and more.
24 tools
Typing & Productivity
Typing speed tests, timers, notepads, lists, and everyday productivity helpers.
20 tools
Design & Creative
Create memes, signatures, invoices, CSS snippets, palettes, SVG shapes, and image canvases.
21 tools
Utilities
Check screens, parse URLs, generate barcodes, inspect files, and look up HTTP status codes.
20 tools