Developer Tools
Turn a project specification into a coding agent prompt
Prepare a small implementation brief with realistic examples, explicit boundaries and checks you can run before accepting an agent's changes.
Updated 7 min read
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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
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
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Developer Tools
Turn a project specification into a coding agent prompt
Prepare a small implementation brief with realistic examples, explicit boundaries and checks you can run before accepting an agent's changes.
Updated 7 min read
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
Creator Tools
How to check YouTube titles, descriptions and tags
Review a YouTube upload draft for clear wording, documented length limits, duplicate tags and useful first lines before publishing.
Updated 6 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
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JSON Formatter and Validator
Validate, pretty-print, minify and sort JSON with useful errors.
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Secret Scanner and Redactor
Find common exposed credentials and create a reviewable redacted copy locally.
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Text Comparison
See added, removed and changed lines in two text versions.
Free · Runs in your browser
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Word and Character Counter
Count words, characters, sentences, paragraphs and reading time live.
Free · Runs in your browser
Image Tools
Image Compressor
Reduce JPEG, PNG or WebP file size with a visual quality control.
Free · Runs in your browserLocal file input
Generators
Secure Password Generator
Create strong passwords with secure randomness and explicit constraints.
Free · Runs in your browser
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