Free tools for social posts, campaigns & everyday work
No signup for most tools — pick something below for design and campaigns, planning, or technical helpers. Most utilities run in your browser so your text stays on your device. SEO helpers: free AI citation check (AEO) and one-URL page check use our servers (rate-limited). Want this kind of work automated? See how CloudyBot runs agents and scheduled tasks.
Social posts & campaigns
AI Post Studio
Prompt-first social posts — director AI picks layout and copy, paints a text-free background, exports PNGs. Growth+ and signed in. Want dials? Use the classic generator below.
Open tool → FeaturedSocial post image generator
Create quote, promo, and announcement visuals for LinkedIn landscape posts, Instagram squares, and X — preset backgrounds anonymously (3 free/day); uploads and brand kit when signed in (90/month on Free). Export shows design tips after each render.
Open tool →Email subject line generator
Newsletter and cold-email subject ideas — tone, goal, optional preheader and emoji; nothing uploaded. Pairs with link previews and social posts.
Open tool →Link preview checker
Paste <head> HTML for SERP, Open Graph, Twitter/X, and Slack mockups — length hints, client-side only. Complements campaigns and email sends.
Open tool → Free · SEOAI citation check (AEO)
Does AI search cite your brand? Ask Perplexity-style AI, see citation sources, and whether your domain appeared — 30 seconds, no signup. Then claim a free 1-page deep audit or the $49 SEO Audit Pack.
Open tool →One-URL SEO page check
Quick sanity check: we fetch one public page, pattern-read title, meta description, H1, and canonical — not a crawl or the paid audit pack. Rate-limited; read the page for scope.
Open tool →Markdown preview
README-style Markdown with a live HTML pane—runs only in your browser; caps are documented in FAQ and shown inline.
Open tool →Planning & estimates
AI cost calculator
Rough monthly API-style LLM spend vs CloudyBot plan caps — presets and shareable links. Use alongside the AI API pricing comparison for up-to-date list rates per model.
Open tool →Free LLM API pricing comparison
Compare OpenAI, Anthropic, Google, Mistral & more—$/1M tokens, free-tier filter, cheapest-chat presets, CSV export. No signup. Use with the AI cost calculator for monthly estimates.
Open tool →AI token calculator
Paste copy for a simple length estimate and compare list-price hints across models — sortable table; runs locally.
Open tool →Time & timezone converter
Turn Unix times, ISO dates, or plain text into local time and other zones — copy-friendly; client-side.
Open tool →Schedule helper (cron)
Turn “every weekday at 9am” into a cron line, see next run times, and check quiet hours — optional GitHub source below.
Open tool →Password generator
Create a strong random password with length and character options — copy in your browser.
Open tool →Technical & data helpers
JSON formatter & validator
Format, minify, or validate JSON for APIs and configs—local-only with a ~2 MB paste ceiling and on-page character hints.
Open tool →Regex tester
JavaScript RegExp with flags, capture groups, and live highlights—hard caps on pattern, sample size, and listed matches (FAQ).
Open tool →URL encoder & decoder
Encode or decode URI components and inspect protocol, host, path, and query.
Open tool →Diff checker
Compare two texts side by side with highlighted changes — client-side.
Open tool →HTTP status code reference
Look up what response codes mean and filter by class — helpful when debugging sites or APIs.
Open tool →Lorem Ipsum generator
Placeholder paragraphs and sentences for mockups — optional shuffle; client-side.
Open tool →JWT decoder
Inspect JWT header and payload locally—paste limit in FAQ; signature shown for reference only (never verified here).
Open tool →Base64 encoder & decoder
Encode text or small files, or decode Base64 — up to 2 MB files; client-side.
Open tool →Hash generator (SHA & HMAC)
SHA-256 / 384 / 512 and HMAC from text or files up to 2 MB — Web Crypto in your browser.
Open tool →Frequently asked questions
Are CloudyBot free tools really free?
Yes. There is no paywall and no account required to use the utilities on this hub. CloudyBot’s hosted product is separate and optional.
Do these tools upload my data?
Most listed tools run entirely in your browser. The HTML price checker and the one-URL SEO page check can ask our servers to fetch a public URL you post (rate-limited); read each tool’s page for limits. Never paste secrets into public tools.
Can I use these tools commercially?
These pages are free utilities. Review CloudyBot’s Terms of Service for the hosted product; the browser-local tools do not impose usage tiers on you.
What is CloudyBot?
CloudyBot is a hosted AI assistant from CloudAxis Labs LLC that can browse the web, use files, remember context, and run scheduled tasks with published billing caps.
Who these tools are for
Creators and marketers — branded social images, subject lines, and link previews without installing design software. Teams planning work — rough AI spend estimates, time zones, schedules, and strong passwords. Developers and technical folks — JSON, regex, JWT, hashes, and related utilities for debugging and automation. Everything here is free to try without an account; the full CloudyBot product adds agents, browsers, and published plan caps.
For a full walkthrough with blog context, see free browser tools — full list (2026).
More tools (browser-backed URL checks and other utilities) are on the roadmap.