pbkdf2 Who is right?

I try to use PBKDF2 but each way I get a different result. Can you tell me what the problem is?

1. Node.js

"use strict";

const pbkdf2 = require("pbkdf2");   // npm i pbkdf2
const sha1 = require("sha1");       // npm i sha1

const y = pbkdf2.pbkdf2Sync(
    "toto",
    "toto",
    1000,
    8 * 10,
    "sha512"
)
    .slice(0, 10)
    .toString("base64")
;

console.log("y =", y);  // X7AxWzPOJiXvfg==

2. Online PBKDF2

https://8gwifi.org/pbkdf.jsp

xAeOzSOt1+xNmA==

3. Postgres

CREATE EXTENSION IF NOT EXISTS "pgcrypto";

SELECT encode(
    PBKDF2(
        'toto',
        'toto',
        1000,
        10,
        'sha512'
    ),
    'base64'
);

-- ybQxw9hGrIkkXA==

Thank you in advance!

Thank you for your answer AK X.

The link https://github.com/brycx/Test-Vector-Generation/blob/master/PBKDF2/pbkdf2-hmac-sha2-test-vectors.md was very helpful.

The function I was using in postgres was not good, this one seems to work: PBKDF2 function in PostgreSQL.