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Free tools. Your next social campaign starts here.

Find the words. Prepare the visuals. Then bring ChatGPT, Claude, Gemini, or your preferred AI assistant to Postly to plan your social media campaign. You review. You approve the schedule.

Use the tools below for free. The 14-day Postly Pro trial requires a card. Assistant connections require API access; setup varies.

46 tools by Postly

Make your next social post.

Draft the caption, prepare your visual, and preview the post. Turn the result into your next agent-led campaign with Postly.

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46 tools

Free AI writing tools

Create and refine captions, bios, scripts, and posts with three editable options.

FeaturedFree

Free AI Caption Generator

Write social media captions with free AI. Choose a platform, tone, and audience, generate three editable options, and copy or download your favorite.

Free

Free AI LinkedIn Post Generator

Write LinkedIn post drafts from your professional experience. Generate three clear alternatives, edit the opening and structure, and preview before posting.

Free

Free AI YouTube Title Generator

Generate YouTube title ideas based on your video. Compare three concise AI titles, edit the wording, and choose an accurate title that matches the content.

Image preparation tools

Resize, crop, compress, and convert images locally in your browser.

FeaturedFree

Free Social Media Image Resizer

Resize and crop images into square, portrait, story, and landscape formats. Adjust framing, download PNG or JPEG, or export a ZIP, all in your browser.

Free

Free Image Format Converter

Convert JPEG, PNG, and WebP images in your browser. Preview the result, choose a background for JPEG, and download the converted image for free.

Free

Free Online Image Compressor

Compress images in your browser. Adjust JPEG or WebP quality, reduce dimensions, compare file size, and download without uploading your photos.

Publishing preparation tools

Preview posts, check text budgets, tidy drafts, and create QR codes.

SEO and competitor research

Audit website pages, compare competitors, and turn measured findings into improvements.

Free

Free SEO Audit

Check a public page for technical, content, mobile, accessibility, and sharing issues. Get measured findings and prioritized fixes.

Social media tools

Create faster, plan smarter, and publish with more confidence.

SEO and website tools

Boost visibility, sharpen metadata, and grow organic reach.

Video utilities

Utilities for working with video you have permission to use.

Free

Free Video to MP3 Converter

Convert a video file to MP3 audio online. Upload a video up to 50 MB, extract its audio and download the MP3. No software installation required.

Developer and utility tools

Clean, convert, validate, and generate technical assets instantly.