Social Media Bulk Scheduling: Upload 500+ Posts in Minutes

Stop scheduling posts one by one. Upload a CSV file or use our REST API to bulk schedule hundreds of social media posts across 13 platforms. Agencies, e-commerce brands, and content teams save 10+ hours per week with bulk scheduling.

500+ posts per upload · 13 platforms supported · CSV + REST API · Platform-specific fields

Key Features

Simple CSV Upload

Download our ready-made CSV template or build your own. Define post content, schedule dates, target platforms, media URLs, and platform-specific settings in a single spreadsheet. No coding required.

Parallel Batch Processing

Upload 500+ posts and watch them get processed in parallel. Our infrastructure handles media downloads, platform validation, and scheduling automatically. Most batches complete in under 30 seconds.

Platform-Specific Columns

Customize every post per platform using dedicated CSV columns. Set Twitter threads with 'twitter_thread', Instagram first comments with 'instagram_first_comment', YouTube tags with 'youtube_tags', TikTok privacy settings, and more.

Automatic Media Processing

Include image and video URLs in your CSV. Late downloads, validates dimensions, optimizes file sizes, and attaches media to each post automatically. Supports JPG, PNG, GIF, MP4, and MOV files.

Smart Pre-Upload Validation

Catch every issue before a single post goes live. Our validator checks character limits, image dimensions, video duration, required fields, and platform rules. You get a row-by-row error report so nothing slips through.

REST API for Programmatic Uploads

Need full automation? Use our bulk upload API endpoint to schedule posts from your own scripts, CI/CD pipelines, or no-code tools like n8n and Make. Same features as CSV, fully programmable.

Timezone-Aware Scheduling

Set timezones per post in your CSV. Schedule content for audiences in New York, London, Tokyo, or anywhere else. Each post publishes at the exact local time you specify.

Multi-Profile Bulk Upload

Managing multiple brands or clients? Upload separate CSV files per profile, or use our API to target different profiles programmatically. Keep each brand's content organized and on schedule.

How Social Media Bulk Scheduling Works

1

Prepare Your Content

Download our CSV template or create your own spreadsheet. Add columns for content, scheduledFor, platform toggles (twitter, instagram, tiktok, linkedin, etc.), media URLs, and any platform-specific fields you need.

2

Upload Your CSV

Go to the Posts tab in your Late dashboard and click 'Bulk Upload'. Select your CSV file, pick the target profile, and hit upload. You can also use the /api/v1/posts/bulk-upload endpoint for programmatic uploads.

3

Review Validation Results

Late validates every row against platform requirements. Character limits, image sizes, video durations, required fields. If anything needs fixing, you get a detailed report. Fix and re-upload if needed.

4

Confirm and Schedule

Once validation passes, confirm to schedule all posts at once. They appear in your content calendar, and you can still edit or delete individual posts before they publish. Done.

Why Teams Choose Late for Bulk Scheduling

Save 10+ Hours Per Week

Schedule an entire month of content across 13 platforms in under 5 minutes. Teams that switch from manual scheduling to bulk uploads report saving 10-15 hours per week on average.

Maintain Posting Consistency

Plan your content calendar in a spreadsheet with your team, get approvals, then upload everything at once. No more gaps in your publishing schedule or last-minute scrambles.

Launch Campaigns Across All Platforms

Coordinate product launches, seasonal campaigns, or event promotions across every social channel simultaneously. Set precise publishing times per platform for maximum reach.

Scale Agency Operations

Manage 10, 50, or 100+ client accounts efficiently. Export approved content calendars to CSV, customize per-platform settings, and schedule weeks of content for each client in minutes.

Automate E-Commerce Promotions

Got a product catalog with hundreds of items? Generate a CSV from your product database and bulk schedule promotional posts. Perfect for flash sales, new arrivals, and seasonal collections.

Developer-Friendly API Integration

Build custom workflows with our REST API. Connect your CMS, product database, or content pipeline to Late and automate bulk scheduling entirely. No manual uploads needed.

Code Examples

Basic CSV Format

Standard CSV structure for bulk scheduling social media posts

content,scheduledFor,timezone,twitter,instagram,linkedin,tiktok,mediaUrls
"Excited to announce our new feature!",2026-03-01T10:00:00Z,America/New_York,true,true,true,false,https://example.com/announcement.jpg
"Behind the scenes of our latest shoot",2026-03-02T14:00:00Z,Europe/London,false,true,false,true,https://example.com/bts.mp4
"5 tips for better social media engagement",2026-03-03T09:00:00Z,UTC,true,true,true,false,https://example.com/tips1.jpg|https://example.com/tips2.jpg
Advanced CSV with Platform-Specific Fields

Use dedicated columns for Twitter threads, Instagram first comments, YouTube tags, and more

content,scheduledFor,twitter,twitter_thread,instagram,instagram_first_comment,youtube,youtube_tags,tiktok,tiktok_privacy
"New tutorial series!",2026-03-01T10:00:00Z,true,"Part 1/3: Getting started|Part 2/3: Deep dive|Part 3/3: Pro tips",false,,true,"tutorial,howto,education",false,
"Check out our latest blog post",2026-03-02T14:00:00Z,true,,true,"Drop a comment if you found this helpful!",false,,true,public
"Product demo video",2026-03-03T09:00:00Z,false,,true,,true,"demo,product,saas",true,public
Bulk Upload via REST API

Programmatic bulk upload for custom workflows and automation

curl -X POST https://getlate.dev/api/v1/posts/bulk-upload \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: multipart/form-data" \
  -F "file=@posts.csv" \
  -F "profileId=PROFILE_ID"
Bulk Upload with Node.js

Automate bulk scheduling from your Node.js application

const FormData = require('form-data');
const fs = require('fs');

const form = new FormData();
form.append('file', fs.createReadStream('posts.csv'));
form.append('profileId', 'YOUR_PROFILE_ID');

const response = await fetch('https://getlate.dev/api/v1/posts/bulk-upload', {
  method: 'POST',
  headers: {
    'Authorization': 'Bearer YOUR_API_KEY',
    ...form.getHeaders()
  },
  body: form
});

const result = await response.json();
console.log(`Scheduled ${result.scheduled} posts`);
Python Bulk Upload

Schedule hundreds of posts from your Python scripts

import requests

with open('posts.csv', 'rb') as f:
    response = requests.post(
        'https://getlate.dev/api/v1/posts/bulk-upload',
        headers={'Authorization': 'Bearer YOUR_API_KEY'},
        files={'file': ('posts.csv', f, 'text/csv')},
        data={'profileId': 'YOUR_PROFILE_ID'}
    )

result = response.json()
print(f"Scheduled {result['scheduled']} posts")
View Full API Documentation

Bulk Schedule to 13 Social Media Platforms

Upload one CSV and publish to every major social network. Late supports all content types per platform, including images, videos, carousels, stories, reels, threads, and more.

X
Instagram
TikTok
LinkedIn
Facebook
YouTube
Threads
Reddit
Pinterest
Bluesky
Google Business
Telegram
Snapchat

Bulk Scheduling FAQ

How many posts can I bulk schedule at once?

You can upload up to 500 posts per CSV file. For larger batches, split your content into multiple CSV files. There is no daily limit on how many bulk uploads you can run.

Where can I download the CSV template?

Download the CSV template from the Bulk Upload page in your Late dashboard, or check our documentation at docs.getlate.dev. The template includes every available column with example data.

What happens if my CSV has errors?

Late validates every row before scheduling anything. You get a detailed report showing which rows failed and why (character limits, missing fields, unsupported media formats). Fix the issues, re-upload, and try again. No posts are scheduled until the entire file passes validation.

Where should I host media files for bulk upload?

Any publicly accessible URL works. Popular options include Dropbox, Google Drive (with public sharing links), AWS S3, Cloudflare R2, or any CDN. Late downloads the files, validates them, and re-uploads to our servers during processing.

Can I edit individual posts after a bulk upload?

Yes. After bulk upload, every post appears in your Posts tab and content calendar. You can edit content, change media, adjust scheduling times, or delete individual posts just like manually created ones.

Can I target different platforms for different posts in the same CSV?

Absolutely. Each row in your CSV has platform toggle columns (twitter, instagram, tiktok, linkedin, etc.). Set each to true or false to control exactly which platforms each post publishes to.

Should I use the CSV upload or the REST API for bulk scheduling?

Use CSV upload if you plan content in spreadsheets and want a quick, visual workflow. Use the REST API if you need automation, like connecting your CMS, product database, or content pipeline to Late programmatically.

What media formats does bulk upload support?

Images: JPG, PNG, GIF, and WebP. Videos: MP4 and MOV. Maximum file sizes depend on the target platform. Late validates media against each platform's requirements during upload.

Can I set Instagram first comments in bulk?

Yes. Add an 'instagram_first_comment' column to your CSV. Late automatically posts the first comment on Instagram feed posts and Reels right after publishing. First comments also work for Facebook, LinkedIn, and YouTube.

Is bulk scheduling included in the free plan?

Yes. Bulk scheduling via CSV and API is available on all plans, including free. The free plan includes 2 profiles. Paid plans increase profile limits and monthly post quotas.

Stop Scheduling Posts One by One

Upload a CSV and schedule your entire content calendar across 13 platforms in minutes