Skip to content
Log in

Where to?

See plans Log in

Best alternatives to FIO Client (2026)

10 Chrome extensions that do a similar job to FIO Client, closest first. Each shows real store users, its rating, how recently it was updated and how many permissions it asks for.

FIO Client: reviews, users and permissionsBest Just for Fun extensions

FIO Client today

≈1K users4.6★ from 10 ratingsUpdated 7 months ago2 permissions

FIO Client alternatives, compared

  1. 1

    HTTP Client

    Fast, lightweight HTTP & WebSocket client for developers — requests, collections, environments and scripts.

    231 users5.0★ from 2 ratingsUpdated 7 weeks ago3 permissions
    • About 4.3× fewer users than FIO Client
    • Updated more recently
    • Asks for more permissions (3 vs 2)
    • Listed under Developer Tools
    Compare side by side
  2. 2

    Socket.IO Test Client

    Socket.IO Client Development Tool

    ≈9K users5.0★ from 6 ratingsUpdated 5 months agoNo special permissions
    • About 9.0× more users than FIO Client
    • Asks for fewer permissions (0 vs 2)
    • Listed under Developer Tools
    Socket.IO Test Client alternativesCompare side by side
  3. 3

    Yet Another REST Client

    YARC (Yet Another REST Client) is an easy-to-use REST Client. Use it to develop, test and debug RESTful APIs.

    ≈60K users4.4★ from 138 ratingsUpdated 21 months ago4 permissions
    • About 60× more users than FIO Client
    • Updated less recently
    • Asks for more permissions (4 vs 2)
    • Listed under Developer Tools
    Yet Another REST Client alternativesCompare side by side
  4. 4

    Altair GraphQL Client

    A beautiful feature-rich GraphQL Client for all platforms.

    ≈50K users4.5★ from 68 ratingsUpdated 5 months ago5 permissions
    • About 50× more users than FIO Client
    • Asks for more permissions (5 vs 2)
    • Listed under Developer Tools
    Altair GraphQL Client alternativesCompare side by side
  5. 5

    WebSocket & Socket.IO Client

    Test WebSocket and Socket.IO connections with a lightweight client. Send messages, view history, and save frequently used requests.

    ≈3K users5.0★ from 2 ratingsUpdated 4 months ago1 permissions
    • About 3.0× more users than FIO Client
    • Updated more recently
    • Asks for fewer permissions (1 vs 2)
    • Listed under Developer Tools
    WebSocket & Socket.IO Client alternativesCompare side by side
  6. 6

    Simple WebSocket Client

    Construct custom Web Socket requests and handle responses to directly test your Web Socket services.

    ≈20K users4.4★ from 9 ratingsNot updated for 3+ yearsNo special permissions
    • About 20× more users than FIO Client
    • Updated less recently
    • Asks for fewer permissions (0 vs 2)
    • Listed under Developer Tools
    Simple WebSocket Client alternativesCompare side by side
  7. 7

    Rockite - WebSocket Client

    A WebSocket client for testing and debugging connections.

    100 users5.0★ from 1 rating1 permissions
    • About 10× fewer users than FIO Client
    • Asks for fewer permissions (1 vs 2)
    • Listed under Developer Tools
    Compare side by side
  8. 8

    Websocket Client

    Websocket client in chrome. Supports WS / WSS. Auto-saving multiple session workspace.

    527 users5.0★ from 4 ratings1 permissions
    • About 1.9× fewer users than FIO Client
    • Asks for fewer permissions (1 vs 2)
    • Listed under Developer Tools
    Compare side by side
  9. 9

    API Tester - REST API Tester Client FREE

    Develop, test and debug REST APIs.

    ≈1K users5.0★ from 1 ratingUpdated 24 months ago1 permissions
    • A similar number of users to FIO Client
    • Updated less recently
    • Asks for fewer permissions (1 vs 2)
    • Listed under Developer Tools
    API Tester alternativesCompare side by side
  10. 10

    WSDLY - SOAP Client

    Tool manage and test SOAP API. It parses WSDL and generates human-readable documentation.

    ≈1K users3.0★ from 2 ratingsNot updated for 3+ yearsNo special permissions
    • A similar number of users to FIO Client
    • Updated less recently
    • Asks for fewer permissions (0 vs 2)
    • Listed under Developer Tools
    WSDLY alternativesCompare side by side

FIO Client alternatives: questions

What is the best alternative to FIO Client?

By users, the most popular alternative is Yet Another REST Client with ≈60K users and a 4.4-star rating. The closest match by what it does is HTTP Client.

Which FIO Client alternative has the best rating?

Altair GraphQL Client has the highest rating of these alternatives with 50+ ratings: 4.5 out of 5 from 68 ratings.

Is there a FIO Client alternative that asks for fewer permissions?

Socket.IO Test Client asks for 0 permissions, against 2 for FIO Client.

How many alternatives to FIO Client are there?

We list 10 close alternatives to FIO Client on the Chrome Web Store, picked by what they do and ranked by how close they are.

Users and ratings are the figures shown on the Chrome Web Store, re-checked continuously. Alternatives are matched on name, description, category and topic. Browse best-of lists by niche.