Les 131 outils gratuits

Tous les outils devpack en un seul arbre — regroupés par catégorie, triés par popularité, avec les recherches auxquelles chaque outil répond. Tapez pour filtrer par nom ou mot-clé.

131 outils

Outils Webflow & Figma8 outils

Outils SEO30 outils

Broken Link Checker★ dead link checker 404 checker link checker check broken links
IndexNow Submitter★ indexnow submit sitemap submit url to bing indexnow key
Schema Markup Generator★ json-ld generator structured data generator schema generator faq schema
SEO Checker & Site Audit★ seo audit website checker seo analyzer seo score
Tracking & Pixel Checker★ tag checker pixel checker find google analytics id gtm checker
ads.txt Generator ads.txt adsense ads.txt authorized digital sellers iab
AI Crawler Checker gptbot claudebot block ai crawlers ai bots robots.txt
Heading Checker h1 checker heading structure header tags h1 h2 h3
Hreflang Generator hreflang hreflang tags alternate hreflang x-default
HTTP Header Checker response headers http headers check headers curl -i online
humans.txt Generator humans.txt credits team website credits
Image Alt Checker alt text checker alt tag checker missing alt image seo
Keyword Density Checker keyword density keyword checker keyword frequency keyword analyzer
llms.txt Generator llms.txt llms txt llmstxt ai seo
Meta Tag Checker meta tags title tag checker meta description checker serp checker
Meta Tag Generator meta tags og tags generator open graph generator twitter card generator
Open Graph Checker og tags open graph twitter card validator social preview
Page Speed Test pagespeed insights core web vitals lighthouse website speed test
Redirect Checker 301 checker 302 redirect redirect chain redirect tracer
Redirect Generator 301 redirect htaccess redirect generator nginx redirect bulk redirects
Robots.txt Generator robots.txt robots txt generator block gptbot block ai crawlers
Robots.txt Tester robots.txt checker robots.txt validator is url blocked disallow tester
Schema Markup Validator structured data testing tool json-ld validator rich results test schema validator
Security Headers Checker security headers hsts checker csp checker http headers security
security.txt Generator security.txt rfc 9116 well-known vulnerability disclosure
SERP Preview serp simulator google snippet preview title tag preview meta description preview
Sitemap Generator create sitemap sitemap.xml generator xml sitemap maker generate sitemap online
Sitemap Validator sitemap checker xml sitemap test sitemap.xml validator sitemap index
UTM Builder utm generator campaign url builder utm parameters utm link
Website Crawler seo crawler site audit spider crawl website

Outils automatisation & HubSpot3 outils

HubSpot Form Styler★ hubspot form css style hubspot form hubspot form styling hubspot form webflow
Date Format Converter date format converter make formatdate zapier date format n8n date format
JSON Path Finder json path finder jsonpath json path get json path

Outils de code12 outils

Diff Checker★ diff text compare compare text diffchecker
README Generator★ readme generator readme.md readme template github readme
Regex Tester★ regex regexp regular expression tester regex checker
Cron Expression Generator crontab cron generator cron explainer cron syntax
CSS Formatter css beautifier css prettifier format css pretty print css
CSS Minifier minify css css compressor compress css css optimizer
cURL to Code curl converter curl to fetch curl to python curl to javascript
HTML Formatter html beautifier html prettifier format html pretty print html
HTML to Markdown html to md convert html to markdown turndown rich text to markdown
JavaScript Formatter js beautifier javascript beautifier js formatter unminify js
Markdown to HTML md to html markdown converter markdown preview markdown editor
SQL Formatter sql beautifier format sql sql pretty print sql query formatter

Outils CSS & design9 outils

Clamp Calculator★ clamp calculator css clamp fluid typography fluid type scale
Box Shadow Generator box shadow box-shadow generator css shadow text-shadow
CSS Gradient Generator gradient generator linear-gradient radial-gradient conic-gradient
Glassmorphism Generator glassmorphism backdrop-filter frosted glass blur background css
PX to REM Converter px to rem rem to px px to em em to px
SVG to CSS Converter svg to css svg data uri svg to data url url encode svg
SVG to JSX Converter svg to jsx svg to react svg to tsx react svg component
SVG ViewBox Scaler svg viewbox scale svg path resize svg coordinates normalize icons
Tailwind Arbitrary Value Generator tailwind arbitrary values tailwind brackets css to tailwind grid-cols-[]

Outils couleur10 outils

Tailwind Color Generator★ tailwind palette shade generator tint generator color scale
APCA Contrast Checker apca wcag 3 lc contrast perceptual contrast
Color Blindness Simulator colorblind color blind test protanopia deuteranopia
Color Converter hex to rgb rgb to hex hex to hsl oklch converter
Color Mixer blend colors color interpolation color steps color-mix
Color Name Finder name that color color name hex color name what color is this
Contrast Checker color contrast checker wcag contrast contrast ratio accessibility
CSS Variables to Tailwind tailwind config css custom properties tailwind colors theme
HEX to RGBA Converter hex to rgb rgba opacity transparency
OKLCH Color Converter oklch oklab perceptual color hex to oklch

Outils web & réseau12 outils

DNS Propagation Checker★ dns propagation checker dns checker check dns propagation global dns check
Ping Test★ ping test online ping ping website ping ip
Port Checker★ port checker open port checker check open ports port scanner online
SPF, DKIM & DMARC Checker★ spf checker dmarc checker dkim checker email deliverability test
What Is My IP★ my ip ip address what is my ip address public ip
WHOIS Lookup★ whois lookup domain whois domain age checker domain expiry check
API Tester rest client postman online http client api testing
DNS Lookup dns checker dns records mx lookup txt record
HTTP Status Codes http status codes http response codes status code list 404 error
SSL Checker ssl check certificate checker tls checker ssl expiry
User Agent Parser user agent ua parser user agent string what is my user agent
Website Down Checker is it down down for everyone or just me website down is site down

Calculatrices & convertisseurs9 outils

Possibility & Combination Calculator★ combination calculator permutation calculator ncr calculator npr calculator
Random Number Generator★ random number generator random name picker random picker team generator
Age Calculator age calculator how old am i calculate age date of birth calculator
Aspect Ratio Calculator aspect ratio 16:9 calculator ratio calculator resolution calculator
Date Difference Calculator days between dates date calculator day counter business days calculator
Number Base Converter binary converter hex to decimal decimal to binary binary to decimal
Percentage Calculator percent calculator percentage of percentage change percent increase
Time Zone Converter time zone converter timezone converter world clock meeting planner
Unit Converter unit conversion metric converter cm to inches kg to lbs

Outils texte10 outils

Case Converter★ uppercase lowercase title case camelcase
Password Generator★ password generator advanced password generator password with specific words custom password generator
Password Strength Checker★ password strength checker how secure is my password password checker time to crack password
Word Counter★ character counter word count letter counter count characters
Lorem Ipsum Generator lorem ipsum placeholder text dummy text filler text
Markdown Task List Converter markdown checklist github task list todo list markdown - [ ]
Remove Duplicate Lines dedupe lines remove duplicates unique lines sort lines
Slug Generator url slug slugify permalink generator seo url
Smart Quotes to Straight Quotes curly quotes smart quotes straight quotes fix json quotes
Soft Hyphen Generator shy soft hyphen zero width space

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