Free online developer tools

8 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 1–8 of 8

0.666score
GGUF My Repo
ggml-org
Converts a Hugging Face model to a quantized GGUF file and uploads it to your account; needs login.
Artifact★ 2.1Kdeveloper tools
0.621score
Convert to Safetensors
safetensors
Converts PyTorch model weights to the safetensors format; asks for a Hugging Face token.
ArtifactNo sign-up★ 270developer tools
0.616score
Chat Template Playground
huggingfacejs
Edit a Jinja chat template and preview how it formats a conversation into model input text.
ArtifactNo sign-up★ 221developer tools
0.613score
MLX My Repo
mlx-community
Converts a Hugging Face model to Apple MLX format and uploads it to your account; needs login.
Artifact★ 220developer tools
0.587score
Export to ONNX
onnx
Exports a Hugging Face model to ONNX and opens a pull request with the result; needs login.
Artifact★ 84developer tools
0.586score
GitHub Repo to Plain Text
Nymbo
Fetches a GitHub repository and merges its files into one text file for pasting into an LLM.
ArtifactNo sign-upIn-browser★ 66developer tools
0.585score
Llama Token Counter
Xanthius
Counts the number of tokens a piece of text uses with the Llama tokenizer.
ArtifactNo sign-up★ 80developer tools
0.440score
Coder
friuns
Browser-based AI assistant that helps write software.
Artifact★ 245developer tools