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Best FileSaver.js Alternatives ranked by AI · updated Aug 2026

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FileSaver.js is a client-side JavaScript library for triggering downloads from Blob, File, and other data objects. It is aimed at web developers who need a lightweight solution for saving generated files, with broad browser compatibility.

Developer: Eli Grey Price: Free, open source 🎯 github.com/eligrey/FileSaver.js
🔓 Open Source 💻 JavaScript 💻 Web Development file downloads

Top 6 FileSaver.js alternatives

1

Jszip

Stuart Knightley and contributors

JSZip is a JavaScript library for creating, reading, and modifying ZIP archives in browsers and Node.js. It is aimed at web developers...

Pros

  • Runs in browsers and Node.js without native dependencies
  • Mature API with broad adoption and extensive documentation
  • Supports creating, reading, and modifying ZIP archives

Cons

  • Uses more memory than streaming-focused ZIP libraries
  • Slower than fflate for many compression workloads
  • Does not provide the strongest streaming support for very large archives

Free

Alternatives to Jszip → Visit site
2 Streamsaver.net logo

Streamsaver.net

Jimmy Wärting

StreamSaver.js is a JavaScript library for saving large streams directly to a user's filesystem from a web browser. It is aimed at...

Pros

  • Streams large files without requiring the complete payload in browser memory
  • Supports progress reporting and abortable downloads
  • Works with generated data and server responses through standard web streams

Cons

  • More complex to integrate than Blob-based download libraries
  • Depends on browser support for service workers and writable streams
  • Requires serving the library's service worker from an appropriate origin

Free, open source

Alternatives to Streamsaver.net → Visit site
3

zip.js

Gildas Lormeau

zip.js is a JavaScript library for reading and writing ZIP archives in browsers and JavaScript runtimes. It is designed for large files...

Pros

  • Stronger streaming support than JSZip for large archives
  • Supports Web Streams, workers, and random-access readers
  • Provides encryption and ZIP64-related capabilities

Cons

  • API is more complex than JSZip's for basic archive tasks
  • Larger conceptual and configuration footprint
  • Some advanced features require understanding different reader and writer types

Free

Alternatives to zip.js → Visit site
4

client-zip

Touffy

client-zip is a browser-focused JavaScript library for generating ZIP files from files, blobs, and streams. It is aimed at download interfaces that...

Pros

  • Designed specifically for efficient browser-side ZIP downloads
  • Can stream archive output with low memory usage
  • Small API focused on creating archives rather than editing them

Cons

  • More limited than JSZip for reading or modifying existing archives
  • Primarily targets browser-side ZIP creation
  • Provides fewer archive manipulation features

Free

Alternatives to client-zip → Visit site
5

browser-fs-access

GoogleChromeLabs

browser-fs-access provides convenient wrappers around the browser File System Access API, with fallbacks for browsers that lack it. It is intended for...

Pros

  • Provides file picker and save-as workflows beyond StreamSaver.js's download focus
  • Uses native filesystem capabilities where supported
  • Includes fallbacks for browsers without the File System Access API

Cons

  • Native filesystem features have uneven browser support
  • User permissions and picker interactions add implementation constraints
  • Not a drop-in replacement for arbitrary background streaming downloads

Free, open source

Alternatives to browser-fs-access → Visit site
6

download.js

rndme

download.js is a lightweight JavaScript utility for initiating downloads from data, URLs, and DOM elements. It targets simple browser download interactions rather...

Pros

  • Very small and straightforward for basic download buttons
  • Accepts common browser data sources including URLs and Blobs
  • Simpler to deploy than StreamSaver.js

Cons

  • Does not provide true large-file streaming
  • Less capable for progress, cancellation, and backpressure handling
  • Browser behavior varies for cross-origin URLs and forced downloads

Free, open source

Alternatives to download.js → Visit site

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