Category
Business & Marketing
13 tools · 12 run entirely in your browser
The unglamorous work behind a campaign: tagging links consistently, producing a QR code that actually scans, signing email professionally, and checking whether a discount leaves a margin. No audience data is invented and no campaign performance is guaranteed.
All marketing tools
UTM Builder
Create consistent, analysable campaign links.
QR Code Generator
Create downloadable PNG and SVG QR codes.
Email Signature Generator
Generate an email signature that survives mail clients.
Campaign ROI Calculator
Profit, ROI, ROAS and payback from two numbers.
QR Code with Logo
Branded QR codes with a safe logo area.
Instagram Caption Formatter
Format captions and check the preview cutoff.
Hashtag Generator
Generate a deduplicated hashtag list.
YouTube Thumbnail Previewer
Preview all YouTube thumbnail sizes for a video.
YouTube Tag Generator
Build a tag list that fits YouTube's limit.
YouTube Description Formatter
Build a structured YouTube description.
Social Media Bio Generator
Generate short, medium and long social bios.
Email Subject Line Tester
Check subject length and spammy wording.
Marketing Calendar Generator
Plan posting slots across weeks and channels.
How these tools handle your data
Each tool page carries a processing label. “Runs in your browser” means the work happens locally with JavaScript. “Public lookup” tools send only the value you type — such as a hostname or MAC address — to a documented third-party API. “Uses a KitJade API” means a small Cloudflare Worker performs the check so that browser CORS rules cannot be bypassed.