AI · alternatives · 2026
24 alternatives to zerodatatools
Free browser utilities. No account. No server. Ever.
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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Hey HN! We’re Kevin and Steve. We’re building PromptTools (https://github.com/hegelai/prompttools): open-source, self-hostable tools for experimenting with, testing, and evaluating LLMs, vector databases, and prompts. Evaluating prompts, LLMs, and vector databases is a painful, time-consuming but necessary part of the product engineering process. Our tools allow engineers to do this in a lot less time. By “evaluating” we mean checking the quality of a model's response for a given use case, which is a combination of testing and benchmarking. As examples: - For generated…
2023 · github.com · its alternatives →
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SpreadSimple 2.0▲295The fastest way to build a website without code
2025 · spreadsimple.com · its alternatives →
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Provide an input CSV and a target field to predict, generate a model + code to run it. - minimaxir/automl-gs
2019 · github.com · its alternatives →
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Hi HN, I built Prompt Builder (https://www.promptbuilder.space/) because I was frustrated managing complex AI prompts in plain text boxes. The core idea: instead of one giant textarea, you compose prompts from draggable, reorderable blocks. Each block can have its own XML/custom tags, visibility toggles (so you can A/B test sections), and duplicates. Key technical details: - Live compiled preview: the right pane shows the exact string being sent, updating as you drag/toggle blocks - Dynamic variables: define {{var_name}} once, use across blocks, change in one…
Aug 2026 · promptbuilder.space · its alternatives →
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We've been building data pipelines that scrape websites and extract structured data for a while now. If you've done this, you know the drill: you write CSS selectors, the site changes its layout, everything breaks at 2am, and you spend your morning rewriting parsers. LLMs seemed like the obvious fix — just throw the HTML at GPT and ask for JSON. Except in practice, it's more painful than that: - Raw HTML is full of nav bars, footers, and tracking junk that eats your token budget. A typical product page is 80% noise. - LLMs return malformed JSON more often than you'd expect, especially with…
Mar 2026 · github.com · its alternatives →
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We built a no/low-code tool that lets you spin up MCPs from a single prompt. MCPs give LLMs access to tools, data, and actions—but they’re hard to build and deploy. Our tool abstracts that: describe what you want, and it auto-generates and hosts the necessary components. No UI flows, no manual chaining—just prompt and go. Examples: • Pull email, parse a DocSend, check Reddit, draft reply • Extract data from a niche site + send a Slack alert • Combine tools without writing glue code Live demo: https://www.youtube.com/watch?v=4uCiaQrgfoE Built over a weekend after getting…
2025 · generatemcp.com · its alternatives →
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Enterprise AI Prompt Engineering with Multi-LLM + MCP
2025 · github.com · its alternatives →
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Drag-and-drop blocks & batch-generate AI prompts in seconds
2025 · promptmix.io · its alternatives →
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Hi HN, Why I got tired of wasting time typing the same instructions to an LLM. "Proofread this," "Summarize that," "Translate this." What I built System Prompt: a free, open-source tool to create reusable AI workflows. It runs 100% in your browser, so your data and API keys stay with you. How Instead of always retyping "Proofread this text and correct it in a professional tone...", you create a reusable workflow in a 2 clicks. It's a node-based editor where you can add prompt nodes, AI nodes (for any model), and connect them. Everything is saved locally in your browser. GitHub:…
2025 · systemprompt.app · its alternatives →
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navigating tasks in your everyday workflow without prompting
2025 · github.com · its alternatives →
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Quickly iterate LLM workflows to streamline your prompting
2025 · promptgruup.com · its alternatives →
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While working with LLMs for structured web data extraction, we saw issues with invalid JSON and broken links in the output. This led me to build a library focused on robust extraction and enrichment: - Clean HTML conversion: transforms HTML into LLM-friendly markdown with an option to extract just the main content - LLM structured output: Uses Gemini 2.5 flash or GPT-4o mini to balance accuracy and cost. Can also also use custom prompt - JSON sanitization: If the LLM structured output fails or doesn't fully match your schema, a sanitization process attempts to recover and fix the data,…
2025 · github.com · its alternatives →
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Hey HN! I built Experiment to solve a common frustration in LLM development: the lack of proper tools for prompt engineering experimentation. Here's what makes it different: Key Features: - Load and edit chat completion logs from CSV files - Fork and modify specific conversation entries - Run inference via Anthropic, Mistral, and OpenAI - Define custom tools using JSONSchema format - Visual tool usage analysis with collapsible, sorted key-value pairs - Full mobile support and available as installable PWA Technical Highlights: - Built with React using custom isomorphic architecture -…
2025 · github.com · its alternatives →
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14 AI tools, your own API key, zero subscription
Jun 2026 · promptforge-navy-psi.vercel.app · its alternatives →
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Hi HN! I built ToolDexo - a collection of 29 free online tools because I was tired of websites that force you to sign up just to use a calculator or word counter. What's included: - Calculators: BMI, calorie, mortgage, loan, tax, grade, tip, percentage, age, compound interest - Converters: Currency (36 currencies with live rates), unit, timezone, file size - Generators: Password, QR code, favicon, color picker, Lorem Ipsum, random number - Text tools: Word counter, case converter, character counter, text compare, Markdown editor - Dev tools: JSON formatter, Base64 encoder/decoder Tech…
2025 · minitools4u.com · its alternatives →
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Hi HN, I wanted to share EzziwebTools, a hub of 30+ free tools. The site is built with Next.js and React, and includes both standard utilities and a few AI-powered tools (using Groq/Llama 3), such as: An API Response Time Comparator (visualizes TTFB vs Download time) An AI-powered SQL Query Explainer & Optimizer A JSON-to-Zod schema converter A Thread/Carousel Builder that exports directly to PDF All the standard utilities are completely free and require no login. The AI tools have a generous daily free limit to help me manage API costs. I'd love for you to try it out. Any feedback…
Jun 2026 · ezziwebtools.com · its alternatives →
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60+ free browser tools — no signup, no uploads, 100% private
Jun 2026 · multi-toolkit.com · its alternatives →
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For the past few months I've been building a lot of things with LLMs (GPT-3, Codex, etc.) as I've been trying to push them to their limits (especially towards applying them to the tabular data domain) When working on this, I've found there are some common patterns for solving problems (templating, chaining, functional-programming style operations, etc.) As I've iterated, I've come to believe that a functional style interface is likely going to power a new wave of systems I'm calling "prompt-machines"(systems where the core new unit of work is a "named" LLM prompt, extending the "function"…
2022 · github.com · its alternatives →
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Free, powerful, and fast client-side tools for developers
Jun 2026 · zeroapitools.vercel.app · its alternatives →
- 24
Hello HN community, I'm excited to share a project we've been working on called PromptMage, an open-source tool designed to simplify the process of creating and managing complex workflows for large language models (LLMs). Backstory As developers and researchers working with LLMs, we found ourselves constantly grappling with the challenges of prompt iteration, testing, and version control. Existing tools didn't quite fit our needs for an integrated, intuitive workflow management solution. So, we decided to build one. PromptMage was born out of a desire to streamline these processes and make…
2024 · promptmage.io · its alternatives →
Also compare
- PromptTools – open-source tools for evaluating LLMs and vector DBs alternatives
- SpreadSimple 2.0 alternatives
- Provide a CSV and a target field, generate a model and code to run it alternatives
- Prompt Builder – Free Templates alternatives
- Robust LLM extractor for websites in TypeScript alternatives
- Lovable for MCPs – No/low-code builder for AI tools alternatives
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 →