zxlie/FeHelper

Health v2 · maintenance only

Flags: no_releases

Adoption not part of the score

5658 stars · 1292 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded

FeHelper is an all-in-one browser extension toolbox for Chrome, Firefox, and Edge (Manifest V3) that bundles 30+ developer utilities such as JSON formatting and diffing, encoding/decoding, timestamp conversion, QR code generation, code beautification, API debugging, and an AI assistant. It has been continuously maintained since 2012 and lets users enable, reorder, and configure tools on demand.

Use cases

• format and beautify json responses in the browser
• decode base64 url jwt and gzip strings
• convert unix timestamps to dates
• generate and decode qr codes
• debug http requests like a lightweight postman
• test websocket connections
• convert excel csv to json
• generate mock test data

When to choose

• you want many small web dev utilities in one extension instead of separate websites
• you frequently inspect, format, or diff JSON during API development
• you need quick encoding, timestamp, or QR code conversions while browsing
• you use Chrome, Edge, or Firefox and want a maintained multi-tool extension

When to avoid

• you need a dedicated, deeply featured tool for a single task like full API testing or screenshot capture
• you cannot install browser extensions in your environment
• you need server-side or CLI batch processing rather than in-browser helpers

Facets

plugin · maturity active

developer-tools json serialization http-client image-processing data-visualization nlp parser gui developer-tools web-development frontend browser-extensions apis browser-extension browser cross-platform browser-extension json-formatter qrcode toolbox manifest-v3 chrome-extension firefox-addon edge-extension ai-assistant timestamp-converter code-beautifier mock-data javascript

Member repositories

For agents

markdown · JSON · MCP: product_card(name="zxlie/FeHelper")