Dev tools · alternatives · 2026
24 alternatives to MockBlast
Generate 1M+ rows of SQL/Mongo data instantly & fast.
Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.
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Generate custom data & API to build apps in less than 30s
2021 · retool.com · its alternatives →
- 3GJ
Easily create complex JSON data structures using intuitive templates.
2023 · jsongenerator.io · its alternatives →
- 4
Mock Turtle▲72GUI approach to generating realistic mock JSON data
2022 · mockturtle.net · its alternatives →
- 5AT
A bunch of developers and myself have created RepliByte - an open-source tool to seed a development database from a production database. Features: - Support data backup and restore for PostgreSQL, MySQL and MongoDB - Replace sensitive data with fake data - Works on large database (> 10GB) (read Design) - Database Subsetting: Scale down a production database to a more reasonable size - Start a local database with the prod data in a single command - On-the-fly data (de)compression (Zlib) - On-the-fly data de/encryption (AES-256) - Fully stateless (no server, no daemon) and lightweight…
2022 · its alternatives →
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InstantDB▲320Complete backend with auth and storage in one prompt
Apr 2026 · instantdb.com · its alternatives →
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Hi HN — we've built a testing framework for Supabase that spins up fast, isolated Postgres databases for each test case. It’s designed to make RLS policies easy to validate with real database state, without global test fixtures or mock auth. Features: - Instant isolated Postgres DBs per test - Automatic rollback after each test - RLS-native testing with `.setContext()` for auth simulation - Flexible seeding (SQL, CSV, JSON, JS) - Works with Jest, Mocha, and any async test runner - CI-friendly (runs cleanly in GitHub Actions) We also published example projects and a free set of tutorials:…
Nov 2025 · npmjs.com · its alternatives →
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I built DDL to Data after repeatedly pushing back on "just use production data and mask it" requests. Teams needed populated databases for testing, but pulling prod meant security reviews, PII scrubbing, and DevOps tickets. Hand-written seed scripts were the alternative slow, fragile, and out of sync the moment schemas changed. Paste your CREATE TABLE statements, get realistic test data back. It parses your schema, preserves foreign key relationships, and generates data that looks real, emails look like emails, timestamps are reasonable, uniqueness constraints are honored. No setup, no…
Jan 2026 · ddltodata.com · its alternatives →
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Paste real JSON, get 1,000 coherent rows that match it
Jun 2026 · jsondevtools.org · its alternatives →
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Mockdata in 10 seconds. 99¢/ export. JSON / CSV / SQL INSERT
2025 · mockdata-generator.toolsfor99cents.com · its alternatives →
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Mockreate▲66Figma plugin to generate & customise random data for designs
2022 · figma.com · its alternatives →
- 12
Import CSV to PostgreSQL, generate a mock API, and 20+ more
2021 · retool.com · its alternatives →
- 13DM
Hello HN, Today we're sharing with you DataConstruct, a tool to help you generate mock data and the code to consume it. Features: - Exporting data to json, yaml, xml - Generating PostgreSQL, MySQL scripts - Code gen for various languages including but not limited to C++, Rust, Typescript, Java, C#, Go, Dart, Swift, Mojo You can try it out at the link below (no signup or credit card needed), the only limit being up to 1000 rows per generation within the playground. https://www.dataconstruct.io/organizations/playground/schema... If there's languages, databases, data…
2024 · dataconstruct.io · its alternatives →
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Pollux▲82Fake json data & json server mock API generator with JWT
2021 · mohammedal-rowad.github.io · its alternatives →
- 15
Generate Realistic Test Data — Instantly.
Nov 2025 · data-mock-generator.com · its alternatives →
- 16GT
2013 · databasetestdata.com · its alternatives →
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JSON Generator▲139Create mock and sample JSON using a powerful template syntax
2014 · json-generator.com · its alternatives →
- 18CM
2023 · butlermock.online · its alternatives →
- 19
Go (Golang) Fake Data Generator for Struct. [Notes]This repository is archived, moved to the new repository https://github.com/go-faker/faker - bxcodec/faker
2019 · github.com · its alternatives →
- 20
Hi HN, I built the first version of Mocktail years ago. I recently came back to the project, and after a pretty substantial rebuild, v4 is now out. Mocktail is a free and open-source, self-hosted mock API server with a built-in dashboard and database, packaged as a single ~25 MB binary. You can run it locally or on your own infrastructure — no account or hosted service required. You can define endpoints and responses, generate realistic data per request, customize headers, status codes and latency, and inspect incoming requests in real time. With v4, I also added MCP support, so coding…
Aug 2026 · getmocktail.com · its alternatives →
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Instantly generate openapi (OAS) 3.0.0 REST + GraphQL APIs
2019 · github.com · its alternatives →
- 22QG
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Generate, validate, and parse React forms using Mongoose-inspired JSON schemas - SteveVitali/react-form-generator
2015 · github.com · its alternatives →
- 24
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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →