Developer Tooling Platform

Build faster.
Debug smarter.

Expose databases, APIs and local services securely. Capture, replay and analyse HTTP traffic — without leaving your dev workflow.

Get Started Free View Pricing
4 Developer Tools
1-click REST API from JSON
Full HTTP Journal & Replay
Core Tools

Everything you need in one place

Four powerful tools designed to eliminate friction from your development and testing workflow.

API

JSON API Server

Upload a JSON document and instantly get a fully functional REST API with CRUD endpoints — no backend code required.

  • Paging, filtering and sorting
  • Edit data in-browser
  • Adjust latency and error rates for testing
See the JSON-to-REST workflow
Most Popular
HTTP

HTTP & Webhook Tunnel

Expose your local web app and capture every incoming request with full journaling and one-click replay.

  • Incoming request journal
  • Replay and debug failed calls
  • Ideal for Stripe, GitHub, and webhook-driven flows
See the webhook tester page
Tunnels

Developer Tunnel

Expose local databases or services to teammates with access controls. Secure collaboration without VPNs.

  • Supports multiple protocols
  • Peer access and permission controls
  • Provider/client workflow for secure connectivity
Explore developer tunnel software
SQL

SQL Practice Lab

Build confidence with hands-on SQL practice in your own Northwind workspace. Try queries, learn faster, and reset anytime.

  • Get a personal Northwind workspace in seconds
  • Test ideas quickly without risking production data
  • Reset instantly whenever you want a fresh start
See the SQL Practice Lab page
Why use this?

Stop fighting your tools.
Start shipping.

Developers waste hours setting up mock APIs, re-triggering webhooks and configuring VPNs. This platform eliminates all of it in minutes.

Fast setup

From zero to running API or tunnel in under 60 seconds.

Secure by default

Access controls, invitation codes, and encrypted channels.

CLI tooling included

Ready-to-download CLI for every platform. Automate everything.

aspcodecli

$ aspcodecli serve --port 3000

✓ Tunnel active

Public URL: https://abc123.aspcode.net

 

→ POST /webhook 200 42ms

→ GET /api/orders 200 18ms

→ POST /webhook 404 5ms

$ aspcodecli replay --id wh_3f9a█

Pricing

Simple, honest pricing

Start free, upgrade when you need more. No hidden fees, cancel any time.

Free
$0 / forever
  • 2 JSON databases
  • 1 dev tunnel
  • 1 webhook tunnel
  • 30 req / min
  • 64 KB max payload
Get Started Free
Most Popular
Premium
$9 / month
  • 20 JSON databases
  • 10 dev tunnels
  • 10 webhook tunnels
  • 300 req / min
  • 1 MB max payload
See Full Plan
Compare all features →
Search Intent Pages

Browse by job to be done

These landing pages each target one intent so visitors and crawlers can move from a generic homepage into a much more specific workflow.

Feature Developer Tunnel Software Evaluate ASPCode for secure local service and database sharing workflows. Read more → Use case Share a Local Database See a focused page for provider and client collaboration around dev databases. Read more → Feature Webhook Tester Inspect inbound requests, keep a journal, and replay events after fixes. Read more → Use case Webhook Debugging Follow the capture, inspect, fix, and replay workflow for failed callbacks. Read more → Integration Stripe Webhook Testing Use a Stripe-specific page for checkout, billing, and subscription callback workflows. Read more → Integration GitHub Webhook Testing Explore repo and app webhook debugging with request capture and replay. Read more → Integration Shopify Webhook Testing Use a Shopify-specific page for order, product, and app event webhook workflows. Read more → Integration Slack Webhook Testing See a Slack-specific page for events, slash commands, and app callback debugging. Read more → Feature JSON to REST API Upload JSON and publish CRUD endpoints for frontend, QA, or demo work. Read more → Use case Mock APIs for Frontend Teams See how shareable hosted mock APIs help UI teams move before backend delivery lands. Read more → Use case QA Sandbox API Give QA and staging workflows stable hosted endpoints with editable test scenarios. Read more → Use case SQL Interview Practice Use the SQL Practice Lab for hands-on interview prep and repeatable query drills. Read more → Use case Junior SQL Exercises Use a beginner-friendly SQL page for onboarding, first exercises, and guided query practice. Read more → Compare ASPCode vs ngrok Compare a platform-first developer workflow with a tunnel-first evaluation path. Read more → Compare ASPCode vs RequestBin Understand the difference between inspection-only and replay-oriented webhook tooling. Read more → Hub Full Resources Hub Browse the complete cluster of feature pages, use-case pages, and comparison pages. Browse hub →

Ready to ship faster?

Enter your invitation code to unlock your free account — APIs, tunnels and webhooks ready in seconds.

Enter Invitation Code Compare Plans