Free tools
Small tools for the daily grind.
Free, no-signup, no-tracking utilities for creators and marketers. Built by the LittlePoster.ai team because we use them too.
A dozen tools, zero sign-ups
Pick a tool and get on with your day
Character counter
Live character & word count against the 2026 limits for X, LinkedIn, Threads, Bluesky, Mastodon, Instagram, TikTok and Facebook.
Open toolQR code generator
Generate high-resolution QR codes for any link. Pick size, error correction, and colors. Download as PNG or SVG.
Open toolOG / social card preview
Paste your Open Graph tags and preview how the link renders on X, LinkedIn, Facebook, Slack and iMessage in real time.
Open toolOG image generator
Type a headline, pick a theme — get a sharp 1200×630 PNG ready for your og:image meta tag.
Open toolColor palette from image
Drop an image, pull out five dominant colors with HEX, RGB and OKLCH. Runs entirely in your browser.
Open toolImage compressor
Compress and convert images to PNG, JPG or WebP with a live quality slider. No upload, no watermark.
Open toolBest time to post (2026)
Weekday and weekend posting windows for each major network, based on our 2026 publishing benchmark.
Open toolUTM link builder
Build trackable campaign URLs with source, medium, campaign, term and content parameters. Live preview, one-click copy.
Open toolEngagement rate calculator
Calculate your engagement rate from likes, comments and saves — with per-network benchmark bands so you know where you stand.
Open toolInfluencer rate calculator
Estimate a fair per-post price by network, follower count and engagement rate. 2026 benchmark CPMs included.
Open toolCPM / CPC / ROAS calculator
Three paid-social calculators in one. Fill in any two fields and the third pops out, plus 2026 benchmark CPMs.
Open toolImage aspect ratios
The 2026 cheat sheet of feed, story, reel, and landscape pixel sizes for every major network. Stop guessing dimensions.
Open toolLiked these tools?
LittlePoster.ai is the social tool we built to manage all our accounts in one place. Compose once, customize per channel, ship on schedule. 14-day free trial, no card.