Free Tools for App Developers
Each one works on the page, with no account. Most run in your browser and send nothing anywhere.
- Free tool
iPhone Mockup Generator
Put app screenshots in an iPhone frame from your App Store link or your files. Transparent PNG, Instagram, story and App Store sizes, free with no watermark.
- Free tool
App Store Screenshot Generator
Turn your screenshots into App Store slides with a headline and an iPhone frame. Loads from your App Store link, exports every slide at 1320 x 2868, free with no watermark.
- Free tool
App Store Character Counter
Count your app name, subtitle, keywords and description against the App Store and Google Play limits as you type. No account.
- Free tool
Free App Store Description Generator
Say what your app does and get a subtitle, promotional text, a description and a keyword field, each inside Apple's limit. No account.
- Free tool
Free App Release Notes Generator
Paste commits or a changelog and get App Store What's New notes, Google Play release notes and a one line social post. No account.
- Free tool
App Store Screenshot Size Checker
Drop up to 10 screenshots and see which App Store display size each matches, or how many pixels off it is, plus the Google Play result.
- Free tool
App Store Campaign Link Generator
Enter your app ID, provider token and campaign names. Get a campaign link per channel in Apple's format, plus the product page and review links.
- Free tool
App Store QR Code Generator
Turn an App Store link or app ID into a static QR code for the product page or the review form. PNG or SVG, free, no sign up.
- Free tool
App Icon Size Checker and Resizer
Drop one icon to check it against the App Store's 1024 x 1024 and Google Play's 512 x 512, then download both sizes as PNG files.
- Tool
Free Brand Kit Generator
Paste a website URL and get its brand colors, the fonts it loads, its logo and a short product summary. No account.
- Free tool
Engagement Rate Calculator
Work out your engagement rate by followers, reach, impressions or views for 11 networks, and compare it with 2026 benchmarks from named studies.
From Claude, ChatGPT and AI Agents
Connect your AI assistant to Spreadcast and ask for posts in plain words. It designs them in your app's brand, writes the captions and saves drafts for you to approve.
- Tool
Social Media MCP Server
Connect Claude, ChatGPT, Claude Code or Cursor to Spreadcast. Your assistant designs posts and carousels in your app's brand, writes captions for 10 networks and publishes once you approve.
- Tool
ChatGPT Social Media Automation
What ChatGPT can do for your social accounts on its own, which plans let it save posts through an app, prompts that work and a real workflow with Spreadcast.
- Tool
Claude for Social Media Marketing
What Claude does well for social media, what it cannot do alone, and how Projects, Skills, connectors, Cowork and Claude Code turn it into a social media manager that drafts real posts.
- Tool
Claude Code for Social Media
How to run social media from Claude Code: an MCP server for posting, CLAUDE.md for your voice, skills and hooks for repeatable posts, scheduled runs, and what each Claude plan costs.
- Tool
Claude Cowork for Social Media
What Claude Cowork does for social media, why it cannot post alone, how to add a social media connector, and a scheduled weekly task that saves designed drafts for you to approve.
- Tool
OpenClaw for Social Media
What OpenClaw is, what Moltbook is, whether OpenClaw can run your social accounts, the security record, and the safe way to let it make posts: an MCP server with drafts and approval.
- Tool
Instagram MCP Server
Post to Instagram from Claude or ChatGPT: what Meta's API allows, the risks of password based GitHub servers, and how Spreadcast designs branded posts and carousels as drafts.
- Tool
LinkedIn MCP Server
What LinkedIn's API allows an MCP server to post, why cookie based GitHub servers put your account at risk, and how to post to LinkedIn from Claude or ChatGPT with drafts first.
- Tool
Pinterest MCP Server
Whether Pinterest has an official MCP server or ChatGPT app, what its API v5 lets a tool post, why Pins from your own developer app stay hidden, and how to post Pins from Claude or ChatGPT with drafts first.
- Tool
TikTok MCP Server
What TikTok's Content Posting API lets an MCP server post, why unaudited apps can only post privately, and how to post to TikTok from Claude or ChatGPT with drafts first.
- Tool
Facebook MCP Server
Meta's ads MCP server against posting to a Facebook Page, what the Graph API allows, why groups are closed to outside apps, and how to post to Facebook from Claude or ChatGPT with drafts first.
- Tool
Telegram MCP Server
Bot servers against user account servers, Claude Code's own Telegram plugin, the fixes for a failed Telegram MCP, and how to post designed posts to a Telegram channel from Claude or ChatGPT.
- Tool
AI Agent for Social Media
What a social media AI agent is in 2026, the three ways to get one, what it should and should not do on its own, the guardrails and the cost of each route.
- Tool
Claude Design for Social Media
How to make Instagram and LinkedIn posts and carousels in Claude Design: sizes per network, prompts, export routes, honest limits, and how to publish from the same chat.
- Tool
Threads MCP Server
Post to Threads from Claude or ChatGPT: the Threads API limits, four GitHub servers and their token chores, hosted options, and how Spreadcast designs the post and saves it as a draft.
- Tool
Gemini for Social Media
Prompts that work in Gemini, a social media manager Gem or skill, the plan limits that matter, and how to post from Gemini CLI or the Gemini app through MCP.
- Tool
YouTube MCP Server
Upload and schedule YouTube videos and Shorts from Claude or ChatGPT: transcript servers versus upload servers, the Data API quota, the Google sign in setup, and the hosted route through Spreadcast.
- Tool
AI Marketing Agent
What an AI marketing agent can do across email, ads, SEO, analytics and social in 2026, the jobs to keep human, how to build one from Claude or n8n, and the real costs.
What Spreadcast Makes for Your App
Paste your App Store link once. Spreadcast designs the post for each update, review and rating milestone, writes the caption and publishes it.
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AI Social Media Manager
What an AI social media manager can and cannot replace, and how Spreadcast runs an app's feed from its App Store listing.
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Social Media Content Calendar
The columns a content calendar needs, posting frequency and timing from four studies, and a calendar that fills itself from your App Store listing.
- Tool
Product Launch Post Generator
Paste an App Store link and get the launch post, then a new announcement post for every version you ship.
- Tool
Testimonial Post Generator
New 5 star reviews and rating milestones become designed posts. Quotes wait for your approval.
- Tool
Instagram Post Generator
Spreadcast designs a 4:5 Instagram post for each app update, 5 star review and rating milestone, writes the caption and publishes it for you.
- Tool
Facebook Post Generator
Spreadcast designs a 4:5 post for each app update, review and rating milestone, writes the caption and publishes it to your Facebook Page.
- Tool
LinkedIn Post Generator
Spreadcast designs an image for each app update, review and rating milestone, writes the LinkedIn caption and publishes the post from your profile.
- Tool
Pinterest Pin Generator
Spreadcast designs a standard image pin for each app update, review and rating milestone, writes the title and description and publishes it to your board.
- Tool
Social Media Caption Generator
Caption limits and hashtag counts for 8 networks, 25 example captions for an app, and how Spreadcast writes one caption per network for each post.
- Tool
Ad Creative Generator for Apps
App ad creative specs for Meta, TikTok, Apple Ads and Google, and which of them a Spreadcast post fits.