Text Tools
How to count words and characters accurately
Understand what word and character totals include, why counters can disagree, and how to check a draft consistently.
Updated 5 min read
Practical guides for everyday digital tasks
Understand the method, avoid common mistakes and see useful examples before putting the work into practice with a free browser tool.
Find a guide
Recommended starting points
Featured guides
Developer Tools
How to format and validate JSON
Learn the difference between valid and readable JSON, decode common parser errors, and handle configuration data safely.
Updated 5 min read
Image Tools
How image compression affects quality
Choose sensible image dimensions, formats and quality settings while understanding where visible compression artefacts come from.
Updated 4 min read
Generators
How to generate a secure password
Understand secure randomness, length, entropy and safe storage so generated passwords remain genuinely useful.
Updated 4 min read
All guides
Original explainers written for practical use.
13 guides
Text Tools
How to count words and characters accurately
Understand what word and character totals include, why counters can disagree, and how to check a draft consistently.
Updated 5 min read
Developer Tools
How to format and validate JSON
Learn the difference between valid and readable JSON, decode common parser errors, and handle configuration data safely.
Updated 5 min read
Developer Tools
How to convert CSV to JSON safely
Convert tabular data without breaking quoted fields, losing headers, or silently changing important values.
Updated 4 min read
Image Tools
How image compression affects quality
Choose sensible image dimensions, formats and quality settings while understanding where visible compression artefacts come from.
Updated 4 min read
Generators
How to generate a secure password
Understand secure randomness, length, entropy and safe storage so generated passwords remain genuinely useful.
Updated 4 min read
Generators
How QR codes work
Learn what a QR code stores, how scanners orient and recover it, and how to create codes that remain easy to scan.
Updated 4 min read
Text Tools
How to compare two text documents
Use line and word-level differences to review edits accurately without letting formatting noise hide meaningful changes.
Updated 4 min read
Calculators
How to calculate percentage increases and decreases
Use the correct baseline for increases, decreases, reverse percentages and comparisons between two values.
Updated 4 min read
Text Tools
How reading-time estimates are calculated
Understand the words-per-minute model behind reading-time labels and use the estimate without presenting it as a promise.
Updated 5 min read
Developer Tools
How to convert JSON to CSV
Turn arrays of JSON objects into dependable tabular exports while handling columns, nested values, quoting and spreadsheet risks.
Updated 5 min read
Image Tools
How to resize images without distorting them
Change pixel dimensions while preserving proportions, understanding enlargement limits and choosing suitable output settings.
Updated 5 min read
Calculators
How to calculate the number of days between two dates
Count elapsed, inclusive and business days consistently while handling leap years, reversed dates and calendar boundaries.
Updated 5 min read
Creator Tools
How to clean filenames for uploads and archives
Create portable, readable filenames in batches without losing extensions, causing collisions or mistaking cleanup for file security.
Updated 5 min read
Learn by doing
Browse all tools Useful tools from the guides
available
Text Tools
Word and Character Counter
Count words, characters, sentences, paragraphs and reading time live.
Browser processing
available
Developer Tools
JSON Formatter and Validator
Validate, pretty-print, minify and sort JSON with useful errors.
Browser processingLocal file input
available
Image Tools
Image Compressor
Reduce JPEG, PNG or WebP file size with a visual quality control.
Browser processingLocal file input
available
Generators
Secure Password Generator
Create strong passwords with secure randomness and explicit constraints.
Browser processing
available
Generators
QR Code Generator
Create downloadable PNG and SVG QR codes with colour and error correction.
Browser processing
available
Text Tools
Text Comparison
See added, removed and changed lines in two text versions.
Browser processing
Ready to put a guide into practice?
Free tools need no account and run in your browser.
Browse all tools