Filestack
Filestack provides SaaS file upload, transformation, and delivery infrastructure via SDKs in 8+ languages, serving 100,000+ developer-led applications with AI-augmented processing, DAM, and a Claude Plugin.
- Company typePrivate
- Founded2011
- HeadquartersSan Antonio, United States
- Headcount11–50
- GTM typeB2B
- OfferingSoftware
What Filestack does
Filestack, Inc. is a San Antonio, Texas-based SaaS provider of file upload, transformation, and delivery infrastructure, founded in 2011. The company offers SDKs in 8+ programming languages that enable developers to embed file ingestion, cloud-based image and video processing, and content delivery directly into their applications; its platform is in use across more than 100,000 applications and supports use cases ranging from user-generated content uploads to document and media workflows. Filestack's product surface has expanded beyond the original File Picker into AI-augmented processing (Filestack Intelligence, covering OCR, object detection, SFW detection, tagging, and sentiment analysis), Digital Asset Management (DAM), Event Logger, and a Claude Plugin exposing MCP tools for the Anthropic ecosystem.
The company monetizes primarily through a product-led growth (PLG) model with a free tier and tiered paid plans, supplemented since 2024 by a Platinum Support offering aimed at larger customers requiring higher SLAs. Notable customer logos include SendGrid, Teachable, Airtable, Zenefits, LinkedIn/SlideShare, TED, Coca-Cola, and Monster, indicating a mix of SaaS, education, enterprise, and consumer-brand buyers. Filestack is privately held, reports 11-50 employees, has raised a $1.8M seed (2013, Andreessen Horowitz and Highland Capital Partners) plus an undisclosed 2015 Series 4, and acquired TINT in 2018 to extend into social content aggregation.
Filestack firmographics
Firmographics- Name
- Filestack
- Legal name
- Filestack
- Website
- https://filestack.com
- Company type
- Private
- Founded year
- 2011
- Operating status
- Operating
- Headcount range
- 11–50 employees
- Short description
- Filestack provides SaaS file upload, transformation, and delivery infrastructure via SDKs in 8+ languages, serving 100,000+ developer-led applications with AI-augmented processing, DAM, and a Claude Plugin.
- Ownership category
- akta.pro rank
Filestack industry classification
Industry- Product category
- Cloud File Management API
- NAICS
- Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services (5182), Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services (518), Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services (518210), Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services (51821)
- SIC
- Services-Prepackaged Software (7372), Services-Computer Programming, Data Processing, Etc. (7370), Services-Computer Programming Services (7371)
- akta.pro primary industry
- File Storage, Sync & Sharing (BPAMAMAE)
- akta.pro secondary industries
- Traditional CDN (Static & Dynamic Content Acceleration) (HDABAGAA), Cloud Encoding & Transcoding Services (SaaS/PaaS) (MPAHAHAC), Developer Tools & DevOps Platform Services (CI/CD, Artifacts, IaC) (HDABAAAI), Cloud Storage Core Services (Object/Block/File Storage as a Service) (HDABAAAK)
Keywords
Where Filestack is headquartered
LocationHeadquarters
- HQ city
- San Antonio
- HQ country
- United States
- HQ region
- North America
Markets served
Filestack business model
Business model- GTM type
- B2B
- Offering type
- Software
- Cost components
- Technology or R&D, Infrastructure, Personnel, Operations, Marketing or Sales
Revenue model
- API Subscription Plans: Tiered subscription plans (Free, paid tiers) with API usage limits. Free tier available for sign-up with usage-based consumption above free limits. Scale and Grow plans with Platinum Support add-on option.
- Usage-Based API Consumption: Pay-for-usage model where developers consume API calls based on upload volume, transformations, and delivery. Conversion and processing performed on-the-fly via CDN URL parameters.
- Freemium Entry: Free sign-up tier allowing developers to integrate and test the API before committing to paid plans. Free consultation and test drive available for enterprise prospects.
- Professional Services: Consulting services offered as part of strategic file management solutions, including free consultation with solution engineering team and 30-day free technical support trial.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Freemium | Monthly | Free tier for developers to get started |
| Subscription | Annual | Scale and Grow plans with advanced features |
| Subscription | Annual | Platinum Support premium add-on |
Go-to-market motion2 records
Distribution channels4 records
Marketing channels7 records
Filestack product offering
Product offeringCore offering
Filestack provides a unified developer API and SDK platform for file upload, in-flight transformation, and global content delivery. Its core stack combines the Upload API (with the embeddable File Picker UI and the Content Ingestion Network for reliable mobile uploads), the Transform API for URL-based image/video/document processing, and the Deliver CDN for optimized distribution. AI-powered intelligence (OCR, tagging, SFW detection), automated Workflows, and Digital Asset Management sit on top as paid modules, all accessible via REST APIs and SDKs across nine programming languages.
Product overview
Filestack is a unified file management platform providing APIs and SDKs for file upload, transformation, and delivery. The core offering combines the Upload API (including File Picker UI and Content Ingestion Network), Transform API for on-the-fly image/video/document processing, Deliver CDN for optimized global delivery, and Intelligence module for AI-powered content analysis. Additional modules include Workflows for automated processing pipelines, DAM for asset management, OCR for document extraction, and Low Code interface. The platform supports integration with major cloud storage providers (S3, Azure, Google Cloud, Dropbox, Rackspace) and offers SDKs across JavaScript, React, Angular, Python, Java, PHP, Ruby, Swift, and Android.
Differentiator
Problem solved
Functional benefit
Brands
- Filestack Upload: File upload API and upload infrastructure service
- Filestack Transform
- Filestack Deliver
- Filestack Intelligence
- Filestack Workflows
- Filestack Processing Engine
- Filestack File Picker
- Filestack DAM
- Content Ingestion Network (CIN)
Products and services
- Filestack Upload
Quantifiable outcome
- 100X more reliable uploads via Content Ingestion Network
- +3 more outcomes
Companies that use Filestack
Customer profileNamed customers9 records
Segments7 records
Ideal customer profiles3 records
Filestack technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- Yes
- API docs
- API detail
Core technology
AI maturity
App detail
Integration8 records
AI capability13 records
Feature8 records
Filestack partnerships and signals
Strategic signalPartnerships
Eight partnerships are on record, tiered core.
- Amazon S3coreDirect integration with Amazon S3 for file storage. Supports S3 IAM configuration for secure bucket access, including GetObject, PutObject, PutObjectAcl, DeleteObject permissions. Files can be uploaded directly to S3 or used as storage destination.
- Google Cloud ServicescoreIntegration with Google Cloud Storage for file storage and delivery. Part of multi-cloud storage strategy supporting major cloud platforms.
- Microsoft AzurecoreIntegration with Microsoft Azure Blob Storage for file storage. Supports Microsoft sign-in authentication for Filestack developer portal. Multi-cloud storage option.
- DropboxcoreDropbox integrated as upload source in File Picker, allowing users to select files directly from Dropbox. Also supported as storage destination.
- Google DrivecoreGoogle Drive integrated as upload source in File Picker, enabling users to import files directly from Google Drive accounts.
- FacebookcoreFacebook integrated as upload source for photos and videos. Version 3.31.0 added Facebook video and GIF browsing capabilities.
- InstagramcoreInstagram integrated as upload source, allowing users to import photos directly from their Instagram accounts via File Picker.
- Anthropic ClaudecoreFilestack Claude Plugin provides MCP tools for AI-assisted file operations, intelligence, document conversion, video transcoding, and workflow automation.
Scale indicators3 records
Recent moves6 records
Expansion highlights5 records
Filestack competitors and assessment
Company assessmentBroad incumbents
- Fastly: Fastly is an edge cloud platform with CDN, image optimization (Fastly Image API), and real-time transformation capabilities — competing with Filestack Deliver and Transform at the enterprise edge.
- Akamai: Akamai is a global CDN and edge platform offering image and video optimization as part of its delivery network — overlapping with Filestack's CDN-backed deliver infrastructure at an enterprise scale.
- Cloudflare: Cloudflare offers CDN, edge storage, and increasingly image and video transformation (Cloudflare Images) as part of a much broader platform — overlapping with Filestack Deliver and parts of Transform at potentially lower marginal cost.
Emerging players
- Mux: Mux provides developer APIs for video upload, encoding, and streaming — directly competing with Filestack's video transformation and delivery capabilities for media-rich applications.
- Transloadit: Transloadit offers a file processing API for encoding, transcoding, and image manipulation — an emerging alternative to Filestack Transform with comparable on-the-fly processing capabilities.
Direct peers
- Uploadcare: Uploadcare offers a file upload, processing, and delivery API with File Uploader UI and CDN, closely overlapping Filestack's core file handling, transformation, and delivery offerings.
- Cloudinary: Cloudinary is the leading image and video management SaaS platform offering upload, transformation, optimization, and delivery via APIs and SDKs — the closest direct competitor to Filestack across upload, transform, and deliver.
- ImageKit: ImageKit provides image and video optimization, transformation, and delivery APIs with real-time processing — a developer-focused direct competitor to Filestack's image and video capabilities.
- Imgix: Imgix provides real-time image processing and CDN delivery APIs, directly competing with Filestack Transform and Deliver for image optimization workloads.
Others
- Backblaze B2 + Cloudflare: Backblaze B2 paired with Cloudflare for storage and CDN is a low-cost DIY alternative to Filestack's combined upload, storage, and delivery stack — often used by developers as a budget substitute for managed file APIs.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat5 records
Key risks5 records
Key highlights7 records
Customer concentration
Filestack social profiles
Digital presenceFilestack compliance and trust
Trust signalCompliance2 records
Filestack financial estimates
Financial estimateRevenue estimate
Valuation estimate
Filestack leadership team
Management profileNumber of profiles
Profiles4 records
Filestack funding detail
Funding detailFunding overview
Funding rounds3 records
Investors7 records
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Filestack M&A and investment
M&A and investmentM&A1 record
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Filestack
What does Filestack do?
Filestack provides a unified developer API and SDK platform for file upload, in-flight transformation, and global content delivery. Its core stack combines the Upload API (with the embeddable File Picker UI and the Content Ingestion Network for reliable mobile uploads), the Transform API for URL-based image/video/document processing, and the Deliver CDN for optimized distribution. AI-powered intelligence (OCR, tagging, SFW detection), automated Workflows, and Digital Asset Management sit on top as paid modules, all accessible via REST APIs and SDKs across nine programming languages.
Is Filestack a public or private company?
Filestack is a private company. It is classified as venture growth investor backed and is currently operating.
When was Filestack founded?
Filestack was founded in 2011. It employs 11 to 50 people.
Where is Filestack based?
Filestack is headquartered in San Antonio, United States, in the North America region.
How does Filestack make money?
Four revenue lines are on record. API Subscription Plans are the primary driver. The others are usage-Based API Consumption, freemium Entry and professional Services.
Who are Filestack's main competitors?
Broad incumbents on record are Fastly, Akamai and Cloudflare. Emerging players are Mux and Transloadit. Direct peers are Uploadcare, Cloudinary, ImageKit and Imgix. Backblaze B2 + Cloudflare is listed as an others.
Does Filestack have an API?
Yes. Filestack provides a REST API for file uploads, transformations, and delivery. The API enables developers to upload files, apply transformations, manage workflows, and deliver content via CDN. SDKs are available for JavaScript, React, Angular, Python, Java, PHP, Ruby, Swift, and Android. Authentication uses API keys with optional security policies and signatures. Developer documentation is at www.filestack.com/docs.
What industry is Filestack in?
Filestack's product category is Cloud File Management API. Its primary akta.pro industry code is BPAMAMAE, File Storage, Sync & Sharing, with a secondary code of HDABAGAA, Traditional CDN (Static & Dynamic Content Acceleration). Its NAICS code is 5182 and its SIC code is 7372.