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Buyer workspace · this week · ranked by community votes

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Volley vs BracketView

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

Volley compared with BracketView
DetailVolley logo VolleyBracketView logo BracketView
What it doesAPI sequence diagram tool with payloads on every arrow Privacy-first JSON workspace for viewing, formatting, validating, and querying API data
StageNot given Startup
FoundedNot given 2025
Based inNot given Not given
Pricing modelFreemium Freemium
PricingFree: editor, local diagrams, share links, SVG and PNG export, CLI, 3 saved diagrams, HAR imports up to 8 requests, 200 hosted API and MCP calls a month, 1 webhook inbox with 25 requests a month, 1 recording link with 3 recordings. Pro: $9/month or $90/year (billed in advance), up to 1,000 saved dia Free: $0 forever with JSON viewer, formatter, validator, tree, graph, node, table, JSONPath, JQ, diff, schema tools, 5 MB uploads, 20 AI actions per month, and 5 encrypted snapshots with 10 minute expiry. Monthly: $3 per month with 50 MB uploads, unlimited snapshot links up to 2 hours expiry, unlimi
Key features
  • Plain-text sequence diagram editor with real-time rendering
  • Request and response payloads displayed on every arrow
  • HAR file import with automatic redaction of secrets
  • Webhook inbox to capture and diagram provider deliveries
  • Recording links to collect customer HAR files as diagrams
  • Drift Check to update diagrams when APIs change
  • SVG and PNG export for sharing and embedding
  • AI agent support via MCP server, HTTP API and CLI
  • README embeds that update when diagrams are edited
  • Presentation mode for step-through walkthroughs
  • Real-time JSON validator
  • JQ and JSONPath query support
  • JSON diff and comparison
  • AI JSON fixer for malformed data
  • Performance Mode for files up to 50 MB
  • Nine UI languages including English, Chinese, Japanese, Korean, Portuguese, Spanish, French, German, and Russian
  • Webhook Tester with request capture and response mocking
What makes it different
  • No account needed to write and share diagrams
  • AI can write diagrams from plain-text syntax
  • Built from real traffic: HAR files, webhooks and customer recordings
  • Privacy-first design with all core tools running client-side in your browser
  • Unified workspace replacing multiple single-purpose tools for JSON work and API debugging
  • No data selling with optional encryption for cloud features
  • Affordable Pro plan at $3/month or $27/year with unlimited AI and larger uploads
Free planNot given Not given
Open sourceNot given Not given
PlatformsNot given Not given
Public APINot given Not given
Community votes00
DR (Domain Rating by Ahrefs)3 no change since last check4 +1 (up) since last check
Trust Flow (Majestic)32
Citation Flow (Majestic)2221
Referring domains (Majestic)834

5 details filled in for both companies.

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