Free tools
Free tools for building in public on X
Small tools for turning what you ship into posts: count like X counts, draft from a commit or a repo, tidy a changelog, split a thread, check a draft, a link鈥檚 card or a video before it goes out, make the images that go with a post, and work out when to post and how a post did. No account, and no access to your X account.
Updated
Each tool runs in your browser, except three: the repo ideas tool and the shipping streak card, which ask GitHub鈥檚 public API for the repo or account you enter, and the X card validator, which reads the one public page you enter. None of them uses an AI model or posts anything: they use fixed templates, the same checks and thread splitter Crux uses on its own drafts, and a canvas in your browser for the images.
饾晱 post preview and character counter
Counts characters the way 饾晱 does (links 23, emoji 2) and previews the post.
Open the toolCommit to tweet
Three post drafts from one commit message, with fixed templates and no AI.
Open the toolChangelog formatter
Groups pasted commit lines into Added, Fixed, Changed and Removed; Markdown, text or an 饾晱 post.
Open the toolPost ideas from a GitHub repo
Reads a public repo's release, commits and stars and suggests posts, each with its source.
Open the toolAI slop checker
Flags stock phrases, invented figures and links, length and long sentences in a draft.
Open the toolThread splitter
Splits long text into posts that each fit 280 characters, cutting at sentences.
Open the toolCode to image
A pasted snippet as a 16:9 PNG, highlighted, in Crux's light, dark or accent theme.
Open the toolScreenshot beautifier
Padding, a background and a plain frame around a screenshot, saved as a PNG.
Open the tool饾晱 header maker for builders
A 1500 脳 500 profile header with your project, a currently building line and stack chips.
Open the toolShipping streak card
The days a GitHub account shipped in the last 30, as a card: current streak, longest run, days shipped.
Open the toolBest time to post on 饾晱
Your readers' morning, lunch and evening, put on your clock. A guess, and it says so.
Open the tool饾晱 engagement rate calculator
Interactions over impressions and over followers, for one post.
Open the toolLaunch-day post templates
Fill-in posts for a launch, a Product Hunt day, a release and a milestone, with copy buttons.
Open the toolMilestone card generator
A plain PNG of your own MRR, users or stars, with the change since an earlier value.
Open the tool饾晱 card validator
Reads a page's card and Open Graph tags and gives a tag to paste for each one missing.
Open the tool饾晱 video spec checker
Checks a video's size, length, dimensions, aspect ratio and bitrate against 饾晱's limits, in the browser.
Open the tool饾晱 advanced search builder
Turns plain fields or a preset into an 饾晱 search query and an x.com link.
Open the toolReach linter
Flags a link in the main post, extra hashtags, engagement bait and AI-sounding phrases, with sources.
Open the tool