diff --git a/devterm/server/routes.py b/devterm/server/routes.py
new file mode 100644
index 0000000..7b385e6
--- /dev/null
+++ b/devterm/server/routes.py
@@ -0,0 +1,141 @@
+from fastapi import APIRouter, Request
+from fastapi.responses import HTMLResponse
+from fastapi.templating import Jinja2Templates
+from pathlib import Path
+
+from devterm.tools.json_tool import format_json, validate_json
+from devterm.tools.jwt_tool import decode_jwt
+from devterm.tools.cron_tool import validate_cron, get_next_run
+from devterm.tools.base64_tool import encode_base64, decode_base64
+from devterm.tools.url_tool import encode_url, decode_url
+
+router = APIRouter()
+
+templates = Jinja2Templates(directory=str(Path(__file__).parent.parent / "templates"))
+
+
+async def get_body(request: Request) -> str:
+    body = await request.body()
+    return body.decode("utf-8") if body else ""
+
+
+@router.get("/json", response_class=HTMLResponse)
+async def json_page(request: Request):
+    return templates.TemplateResponse("json.html", {"request": request})
+
+
+@router.post("/json/format")
+async def format_json_endpoint(request: Request):
+    data = await get_body(request)
+    try:
+        if not data:
+            return {"error": "No data provided"}
+        result = format_json(data)
+        return {"result": result, "valid": True}
+    except Exception as e:
+        return {"error": str(e), "valid": False}
+
+
+@router.post("/json/validate")
+async def validate_json_endpoint(request: Request):
+    data = await get_body(request)
+    try:
+        if not data:
+            return {"error": "No data provided"}
+        is_valid = validate_json(data)
+        return {"valid": is_valid}
+    except Exception as e:
+        return {"error": str(e), "valid": False}
+
+
+@router.get("/jwt", response_class=HTMLResponse)
+async def jwt_page(request: Request):
+    return templates.TemplateResponse("jwt.html", {"request": request})
+
+
+@router.post("/jwt/decode")
+async def decode_jwt_endpoint(request: Request):
+    token = await get_body(request)
+    try:
+        if not token:
+            return {"error": "No token provided"}
+        result = decode_jwt(token)
+        return result
+    except Exception as e:
+        return {"error": str(e)}
+
+
+@router.get("/cron", response_class=HTMLResponse)
+async def cron_page(request: Request):
+    return templates.TemplateResponse("cron.html", {"request": request})
+
+
+@router.post("/cron/validate")
+async def validate_cron_endpoint(request: Request):
+    cron_expr = await get_body(request)
+    try:
+        if not cron_expr:
+            return {"error": "No cron expression provided"}
+        is_valid = validate_cron(cron_expr)
+        next_run = get_next_run(cron_expr) if is_valid else None
+        return {"valid": is_valid, "next_run": next_run}
+    except Exception as e:
+        return {"error": str(e), "valid": False}
+
+
+@router.get("/base64", response_class=HTMLResponse)
+async def base64_page(request: Request):
+    return templates.TemplateResponse("base64.html", {"request": request})
+
+
+@router.post("/base64/encode")
+async def encode_base64_endpoint(request: Request):
+    data = await get_body(request)
+    try:
+        if not data:
+            return {"error": "No data provided"}
+        result = encode_base64(data)
+        return {"result": result}
+    except Exception as e:
+        return {"error": str(e)}
+
+
+@router.post("/base64/decode")
+async def decode_base64_endpoint(request: Request):
+    data = await get_body(request)
+    try:
+        if not data:
+            return {"error": "No data provided"}
+        result = decode_base64(data)
+        return {"result": result}
+    except Exception as e:
+        return {"error": str(e)}
+
+
+@router.get("/url", response_class=HTMLResponse)
+async def url_page(request: Request):
+    return templates.TemplateResponse("url.html", {"request": request})
+
+
+@router.post("/url/encode")
+async def encode_url_endpoint(request: Request):
+    data = await get_body(request)
+    try:
+        if not data:
+            return {"error": "No data provided"}
+        result = encode_url(data)
+        return {"result": result}
+    except Exception as e:
+        return {"error": str(e)}
+
+
+@router.post("/url/decode")
+async def decode_url_endpoint(request: Request):
+    data = await get_body(request)
+    try:
+        if not data:
+            return {"error": "No data provided"}
+        result = decode_url(data)
+        return {"result": result}
+    except Exception as e:
+        return {"error": str(e)}