All tools — A to Z
Complete index of every free CFT tool. 121 utilities across 5 categories — every one runs in your browser.
A
B
C
- Caesar Cipher / ROT13Text toolsShift cipher (encode and decode).
- CalculatorDeveloper toolsBasic + scientific functions.
- Calorie & Macro CalculatorDeveloper toolsBMR, TDEE, and macro targets.
- Case ConverterText toolsUPPER, lower, Title, camelCase, snake_case, kebab-case.
- Char CodesDeveloper toolsChar ↔ Unicode codepoint.
- Chmod CalculatorDeveloper toolsUnix permissions, octal ↔ symbolic.
- Coin & DiceDeveloper toolsFlip a coin, roll dice.
- Color Contrast CheckerDeveloper toolsWCAG AA/AAA contrast ratio.
- Color ConverterDeveloper toolsHex ↔ RGB ↔ HSL with live preview.
- Color PaletteDeveloper toolsGenerate complementary, analogous, triadic schemes.
- Compound InterestDeveloper toolsProject savings or investment growth.
- Compress ImageImage toolsShrink JPG, PNG, or WebP images.
- Compress PDFPDF toolsShrink PDFs by stripping metadata and using object streams.
- Convert ImageImage toolsSwitch between JPG, PNG, and WebP.
- Countdown TimerDeveloper toolsCount down to a future moment.
- Credit Card ValidatorDeveloper toolsLuhn checksum + brand detection.
- Cron Expression ExplainerDeveloper toolsDecode any cron schedule into plain English.
- Crop ImageImage toolsCut a rectangle out of any image.
- Crop PDFPDF toolsTrim margins from every page.
- CSS Border RadiusDeveloper toolsVisual border-radius designer.
- CSS Easing GeneratorDeveloper toolsCubic bezier visual editor.
- CSS Gradient GeneratorDeveloper toolsBuild a CSS gradient with copy-ready code.
- CSS Grid GeneratorDeveloper toolsVisual CSS grid layout builder.
- CSS MinifierDeveloper toolsStrip whitespace and comments from CSS.
- CSS Specificity CalculatorDeveloper toolsScore selectors by specificity.
- CSS Spinner GeneratorDeveloper toolsPure-CSS loading spinner.
- CSS Triangle GeneratorDeveloper toolsMake a CSS triangle from borders.
- CSV ↔ JSONDeveloper toolsConvert between CSV and JSON arrays.
- CSV ViewerDeveloper toolsPaste CSV, browse as a sortable table.
D
E
F
G
H
- Hash GeneratorDeveloper toolsSHA-1, SHA-256, SHA-384, SHA-512 hashes.
- HMAC GeneratorDeveloper toolsHMAC-SHA1/256/384/512 over text.
- HTML → MarkdownText toolsConvert HTML back to clean Markdown.
- HTML CheatsheetText toolsQuick reference for common HTML elements.
- HTML Encode / DecodeDeveloper toolsEscape and unescape HTML entities.
- HTML MinifierDeveloper toolsStrip whitespace and comments from HTML.
- HTML Table → JSONDeveloper toolsScrape an HTML table into JSON.
- HTTP Status CodesDeveloper toolsSearchable reference for status codes.
I
J
- JPG to PDFPDF toolsCombine images into a single PDF.
- JSON → TypeScriptDeveloper toolsGenerate TypeScript interfaces from JSON.
- JSON ↔ XMLDeveloper toolsConvert between JSON and XML.
- JSON ↔ YAMLDeveloper toolsConvert between JSON and YAML.
- JSON DiffDeveloper toolsCompare two JSON documents.
- JSON FormatterDeveloper toolsPretty-print, validate, or minify JSON.
- JSON Path QueryDeveloper toolsExtract data with JSONPath.
- JSON Sort KeysDeveloper toolsAlphabetize JSON object keys.
- JWT DecoderDeveloper toolsInspect a JWT — header, payload, expiry.
L
M
- Markdown CheatsheetText toolsOne-page Markdown syntax reference.
- Markdown PreviewText toolsRender Markdown to HTML side-by-side.
- Markdown Table GeneratorText toolsBuild Markdown tables visually.
- Markdown TOC GeneratorText toolsBuild a table of contents from headings.
- Merge PDFPDF toolsCombine multiple PDFs into one file.
- MIME Type LookupDeveloper toolsMap file extensions to MIME types.
- Mock Data GeneratorDeveloper toolsFake names, emails, addresses, IDs.
- Morse Code TranslatorText toolsText ↔ Morse with audio playback.
N
P
- Palette from ImageImage toolsExtract dominant colors from any image.
- Password GeneratorDeveloper toolsCryptographically random passwords.
- Percentage CalculatorDeveloper tools% of a number, % change, tip, etc.
- Pixel ↔ RemDeveloper toolsConvert px to rem/em and back.
- Pixelate ImageImage toolsReduce an image to chunky pixels.
- Pomodoro TimerDeveloper tools25/5 work-break cycles.
Q
R
- Random Number GeneratorDeveloper toolsRandom integers in any range.
- Random PickerDeveloper toolsPick random items from a list.
- Regex TesterDeveloper toolsTest regular expressions live.
- Resize ImageImage toolsScale to fit width, height, or both.
- Resize PagesPDF toolsChange page size to A4, Letter, etc.
- Reverse PDFPDF toolsFlip page order end to end.
- Roman NumeralsDeveloper toolsConvert between Roman and Arabic numerals.
- Rotate ImageImage tools90°, 180°, or 270° rotation.
- Rotate PDFPDF toolsFix sideways or upside-down pages.
S
- Salary ConverterDeveloper toolsHourly ↔ daily ↔ monthly ↔ yearly.
- Slug → TextText toolsReverse slugs back to readable titles.
- SlugifyText toolsTurn any text into a URL slug.
- Sort LinesText toolsAlphabetical, length, reverse, dedupe.
- Split PDFPDF toolsPull pages out into separate files.
- SQL FormatterDeveloper toolsPretty-print SQL across dialects.
- StampXDesign toolsBulk-generate certificates, IDs, badges & invoices from a CSV.
- StopwatchDeveloper toolsStart, stop, lap.
- String ToolsText toolsReverse, repeat, trim, pad text.
- Strip EXIF MetadataImage toolsRemove camera & GPS data from photos.
- Subnet / CIDR CalculatorDeveloper toolsIPv4 network info from a CIDR.