Free online developer tools

19 tools

Small utilities developers reach for daily: JSON and YAML formatters, Base64 and URL encoders, regex testers, JWT decoders, diff viewers and cron helpers. Prefer tools marked as running in your browser when you paste tokens, keys or production data, because nothing is uploaded.

Showing 1–19 of 19

0.676score
AnyCoder
akhaliq
Generates code and small apps from a prompt with a choice of models; sign in with Hugging Face.
ArtifactAI★ 3.3Kdeveloper tools
0.673score
DeepSite v4
enzostvs
Generates a web application from a text prompt through vibe coding.
ArtifactAI★ 16.6Kdeveloper tools
0.661score
InstantCoder
osanseviero
Generates a small web app from a prompt and shows the result immediately.
ArtifactAINo sign-up★ 1.5Kdeveloper tools
0.647score
Screenshot to HTML
HuggingFaceM4
Upload a screenshot of a web page and get HTML that approximates it.
ArtifactAINo sign-up★ 934developer tools
0.625score
Convert to ONNX
onnx-community
Converts a Hugging Face model to the ONNX format.
ArtifactAI★ 195developer tools
0.624score
Qwen3 Coder WebDev
Qwen
Describe a web page or small app and Qwen3-Coder writes the HTML, with a live preview.
ArtifactAINo sign-up★ 1.2Kdeveloper tools
0.621score
Qwen2.5 Coder Artifacts
sambanovasystems
Describe a small app and get generated code that previews in the page.
ArtifactAINo sign-up★ 276developer tools
0.619score
Code Llama Playground
codellama
Generate and complete code by typing a prompt into the Code Llama playground.
ArtifactAINo sign-up★ 251developer tools
0.588score
DeTikZify
nllg
Converts a sketch or figure image into TikZ code for LaTeX documents.
ArtifactAINo sign-up★ 91developer tools
0.587score
OpenVuln
zai-org
Scans a repository for bugs using GLM models.
ArtifactAI★ 218developer tools
0.583score
GitHub Issue Generator
reach-vb
Writes a GitHub issue draft with SmolLM2 running locally in the browser on WebGPU.
ArtifactAINo sign-upIn-browser★ 56developer tools
0.580score
WebLLM Structured Generation
mlc-ai
Generate structured output such as JSON from an in-browser WebLLM model.
ArtifactAINo sign-upIn-browser★ 50developer tools
0.561score
PGlite Semantic Search
thorwebdev
Vector search over documents using a Postgres running in WebAssembly (PGlite) inside the browser.
ArtifactAINo sign-upIn-browser★ 20developer tools
0.561score
MiniCPM5-2B WebGPU Pi
victor
Runs a small coding agent entirely in the browser using WebGPU, with no server needed for the model.
ArtifactAI★ 103developer tools
0.544score
The Tokenizer Playground
Xenova
Lets you try different tokenizers on your text and compare how each one splits it into tokens.
ArtifactAI★ 720developer tools
0.442score
Web Search MCP
victor
Searches the web and extracts page content in a form suited to feeding into LLMs.
ArtifactAI★ 173developer tools
0.438score
AutoTrain Advanced
autotrain-projects
No-code interface for training machine learning models on your own data with Hugging Face AutoTrain.
ArtifactAI★ 141developer tools
0.438score
— Hub API Playground —
enzostvs
Playground for trying out Hugging Face Hub API calls from the browser.
ArtifactAI★ 140developer tools
0.436score
QwenSite
enzostvs
Describe an application in plain text and have a Qwen model generate its code for you.
ArtifactAI★ 133developer tools