FilePost Blog
Guides, tutorials, and comparisons for developers building with file upload APIs.
Secure Browser File Uploads Without Exposing Your API Key
Build a browser file drop with a server-created intake link, scoped limits, and a hosted upload page instead of shipping an account API key.
Guide August 2026Uploadcare Alternative for Simple File Uploads
An honest Uploadcare vs FilePost comparison for teams deciding between a full media pipeline and one upload-to-public-URL API.
Comparison August 2026Supabase Storage Alternative for Public File URLs
Use Supabase when files need auth and RLS. Use FilePost when buckets, policies, SDKs, and egress meters are unnecessary setup.
Comparison August 2026Cloudflare R2 Alternative for Simple Public Uploads
Compare raw S3-compatible object storage with a finished upload API that returns a production-ready public CDN URL.
Comparison August 2026File Upload Webhook: Trigger Automation After Every Upload
Set one webhook URL and get a signed upload-complete event after every API upload, with retries built in. Includes n8n, Zapier, and Python receiver examples.
Guide August 2026n8n Base64 File Upload: Convert Binary Data to a Public URL
Send a base64 string from n8n to FilePost as JSON and map the returned permanent CDN URL into later workflow nodes.
Integration June 2026Make.com Base64 File Upload: Send JSON and Get a Public URL
Use Make's HTTP app with FilePost's base64 endpoint when a module returns file bytes as a JSON string.
Integration June 2026GitHub Actions Upload Artifact to Public URL with cURL
Upload reports, screenshots, ZIPs, and release files from CI to FilePost and write the public URL back to the workflow.
Guide June 2026Base64 File API: Upload JSON or Fetch a File as Base64
Upload files as base64 JSON when multipart/form-data is awkward. Includes cURL, JavaScript, Python, and automation workflow examples.
Guide June 20260x0.st Alternative: cURL Uploads with Permanent URLs
Compare anonymous command-line upload tools with FilePost's API keys, file management, dashboard, and permanent CDN URLs.
Comparison June 2026Zapier FTP Alternative: Upload Files and Get Public URLs
Replace FTP handoffs in Zapier with a file upload API that returns a public URL directly to the rest of your workflow.
Integration June 2026File Upload API: Complete Developer Guide (2026)
What a file upload API actually does, the REST multipart request shape, working code in cURL, Python, Node.js, and Go, plus a comparison of popular services.
Guide April 2026Airtable Attachment Public URL: Fix Expiring File Links
Airtable attachment download URLs expire. Download the temporary file, upload it to FilePost, and write a permanent CDN URL back to Airtable.
Integration May 2026n8n Binary File to Public URL: Clean Workflow with FilePost
Turn n8n binary data into a permanent public URL with the verified FilePost node or the built-in HTTP Request node.
Integration May 2026file.io API Guide: cURL Uploads, Limits, and Permanent URL Fix
Use the file.io API with cURL. See the upload endpoint, expiry rules, maxDownloads, limits, and when to use FilePost for permanent CDN URLs.
Guide Updated May 2026Filestack Alternative: 5 Options for Developers (2026)
Filestack starts at 69 USD/mo with multi-meter pricing. Compare 5 alternatives: FilePost, Uploadcare, Cloudinary, UploadThing, and file.io.
Comparison April 2026Bytescale Alternative: 5 Cheaper Options for File Upload APIs
Bytescale (formerly Upload.io) bills per-GB bandwidth. Compare 5 alternatives with flat pricing, simple REST APIs, and predictable monthly costs.
Comparison April 2026transfer.sh Alternative: 5 cURL File Upload Tools That Work
Compare cURL-friendly alternatives including FilePost, file.io, 0x0.st, catbox.moe, and pixeldrain by expiry, API, and permanence.
Comparison Updated May 2026How to Upload Files with Python: requests Examples
Upload files in Python using the requests library. Copy-paste examples for multipart uploads, API key auth, streaming from URL, and parallel uploads.
Tutorial April 2026How to Upload Files in JavaScript with Fetch API
Upload files in JavaScript using Fetch and FormData. Browser and Node.js examples, drag-and-drop, upload progress with XHR, and common pitfalls.
Tutorial April 2026Fix Airtable Expiring Attachment URLs: Get Permanent File Links
Airtable attachment URLs expire after hours. Re-upload to FilePost for permanent CDN links. Automate with Make, Zapier, or n8n.
Integration April 2026Upload Files in Make (Integromat): Get Permanent CDN URLs
Make has no built-in file hosting. Use FilePost's HTTP module to upload files and get permanent public URLs in any scenario.
Integration April 2026Upload Files in Pipedream Workflows and Get Public URLs
Use the native FilePost Pipedream component, or Node.js and Python steps, to turn workflow files into permanent CDN URLs.
Integration April 2026Get Public URLs for ClickUp Attachments, No Auth Required
ClickUp attachments need login to access. Re-upload to FilePost for public CDN URLs you can share with anyone.
Integration April 2026Upload Files and Store URLs in Google Sheets, Automated
Upload files via API and automatically log permanent CDN URLs in Google Sheets. Works with Apps Script, Zapier, or Make.
Integration April 2026cURL File Upload: The Commands I Always Have to Look Up
The cURL flags I keep forgetting: -F vs -d, the @ before filenames, multipart headers, auth. All the one-liners I actually use, in one place.
Tutorial April 2026file.io Deleted My File After One Download. Here's What I Use Instead
file.io's default is to delete files after the first download. If you need permanent URLs for automations or apps, here's what works better.
Comparison April 20265 Best UploadThing Alternatives for Developers (2026)
Compare UploadThing alternatives: FilePost, Cloudinary, Uploadcare, file.io, and Filestack. REST API, no framework lock-in, better pricing.
Comparison April 2026imgbb Alternative for Developers: Full File API
Compare image-only hosting with a full file API for uploads, file listing, deletion, any file type, and migration.
Comparison April 2026REST API File Upload Guide: Headers, Multipart & Examples
Learn the REST upload method, endpoint, headers, multipart/form-data fields, response schema, and working examples in cURL, Python, Node.js, Java, and PHP.
Tutorial April 2026FilePost vs Cloudinary: Which File Hosting API Should You Choose?
Side-by-side comparison of FilePost and Cloudinary: pricing, simplicity, file type support, and use cases.
Comparison April 2026How to Upload Files from React and Next.js Using an API
Build file uploads in React with fetch, Axios progress bars, drag-and-drop, and secure Next.js API routes.
Tutorial April 2026File Upload API for Python: Django and Flask Examples
Upload files from Python with requests, Django views, Flask routes, and async httpx. Production-ready code examples.
Tutorial April 2026How FilePost Keeps Your Files Secure
Verified FilePost security boundaries: HTTPS, public URLs, API key auth, monitored storage, deletion, retention, and encrypted database backups.
Security April 2026How to Upload Files via API: cURL, Python & JavaScript
Learn how to upload files via API with cURL, Python, and JavaScript, then handle responses, errors, and safe browser patterns.
Tutorial March 2026How to Get a File URL (Public Link) for Any File
Learn how to upload any file and get a shareable link with a browser, REST API, cURL, Python, or Node.js.
Guide March 2026uploadtourl.com Alternative: Why Developers Switch to FilePost
Feature-by-feature comparison of FilePost vs uploadtourl.com, pricing, limits, API, and developer experience.
Comparison March 2026Best File Hosting API Alternatives for Developers
Compare five file hosting API alternatives by setup complexity, file limits, pricing, storage control, and CDN URL delivery.
Comparison March 2026File Upload API vs AWS S3: Which Is Simpler?
Side-by-side comparison of dedicated file upload APIs versus AWS S3 for file hosting needs.
Comparison March 2026Building a File Upload Feature Without Backend Code
Add file uploads to any app without writing server-side code using a file hosting API.
Tutorial March 2026Getting a Public File URL Out of n8n Took Me Too Long to Figure Out
n8n's binary data handling is confusing. Here's the setup that actually works for uploading files and getting a permanent public URL back.
Integration March 2026Automating File Uploads with Zapier
Automate file uploads from Gmail, forms, and other triggers using Zapier and FilePost's API.
Integration March 2026