Cannot find module 'bcrypt'

Question

I am getting error Cannot find module 'bcrypt' in nodejs application

I have tried to install it using npm install bcrypt but still getting the issue.

node app.js

Error message:

Dec 30 2015 5:22:18 PM+05:30 - info: Connected to database:  
postgres://testdb:see2@$W@localhost/testdb

Dec 30 2015 5:22:18 PM+05:30 - error: Error: Cannot find module 'bcrypt'
at Function.Module._resolveFilename (module.js:338:15)
at Function.Module._load (module.js:280:25)
at Module.require (module.js:364:17)
at require (module.js:380:17)
at Object.<anonymous> (D:\...\server\modules\user\model
s\user.js:11:14)
at Module._compile (module.js:456:26)
at Object.Module._extensions..js (module.js:474:10)
at Module.load (module.js:356:32)
at Function.Module._load (module.js:312:12)
at Module.require (module.js:364:17)

github.com/vercel/next.js/discussions/76822

Vyacheslav Shmal
– Vyacheslav Shmal

2025-04-21 14:10:15 +00:00
Commented Apr 21 at 14:10 — Vyacheslav Shmal
– Vyacheslav Shmal, Commented Apr 21 at 14:10

Tyler Collier · Accepted Answer · 2017-01-26 16:30:48Z

102

The solution for me was to npm rebuild.

answered Jan 26, 2017 at 16:30

Tyler Collier

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Comments

tscpp · Accepted Answer · 2020-03-20 18:19:31Z

100

Using npm install bcrypt command can't resolve the issue for me.

I tried the commands below and my issue resolved.

npm install node-gyp -g
npm install bcrypt -g

npm install bcrypt --save

edited Mar 20, 2020 at 18:19

tscpp

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answered Jan 2, 2016 at 7:36

Ramesh Chand

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3 Comments

Dipin Krishnan Over a year ago

node-gyp was giving me issues. Followed the steps above and voila! Thanks buddy.

Yahia Mgarrech Over a year ago

If you get access error when installing bcrypt, try this : sudo npm install --unsafe-perm --verbose -g bcrypt

Touqeer Aslam Over a year ago

It should be npm install bcrypt --save. Works for me!

Mohamed Amine MAAROUFI · Accepted Answer · 2018-12-12 17:22:57Z

31

use bcryptjs instead bcrypt this is worked for me

npm install bcryptjs --save

answered Dec 12, 2018 at 17:22

Mohamed Amine MAAROUFI

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2 Comments

Nikos Over a year ago

i still get same error with that: SyntaxError: Named export 'compare' not found. The requested module 'bcryptjs' is a CommonJS module,

buster95 Over a year ago

If you're using TS you also need to install @types/bcryptjs as dev dependency, remember remove @types/bcrypt

Eugène Beliaev · Accepted Answer · 2020-04-24 20:24:22Z

26

The Solution is pretty basic, I've solved this Error / Bug with the following steps:

Step 1: Uninstall the bcrypt package with this command :

npm uninstall bcrypt

Step 2: Then ReInstall it :

npm install bcrypt

answered Apr 24, 2020 at 20:24

Eugène Beliaev

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2 Comments

StepUp Over a year ago

Wow! It saves me a lot of time! It actually works! Thanks! :)

uday augustin Over a year ago

This simple approach worked perfectly! . Thank you.

leompeters · Accepted Answer · 2016-05-05 18:59:48Z

18

It should be npm install bcrypt --save. Works for me!

And, if you have others issues after install it, you can check your packages with npm-check.

answered May 5, 2016 at 18:59

leompeters

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Comments

Abhu · Accepted Answer · 2018-10-03 01:09:27Z

10

Solution 1: lengthy method is : Install all dependencies first.

npm install -g windows-build-tools, npm install -g node-gyp

then, install bcrypt : npm install bcrypt

Solution 2: easy method. No dependencies installation required.

npm install bcryptjs

...You might have installed bcrypt but it seems like the installation was not successful for some reason. check the package.json file. If you cannot find bcrypt, the installtion was unsuccessful. You have to install again.

As everyone explained, it because of lack dependencies that your installation was unsuccessful. You can checkout the required dependencies in the link: https://www.npmjs.com/package/bcrypt

Note: To use bcrypt: var bcrypt = require('bcrypt'); .....

to use bcryptjs. var bcrypt = require('bcryptjs');

for reference: https://www.npmjs.com/package/bcrypt https://www.npmjs.com/package/bcryptjs

edited Oct 3, 2018 at 1:09

answered Oct 3, 2018 at 0:46

Abhu

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2 Comments

kenlukas Over a year ago

what's the second way?

Sherif eldeeb Over a year ago

does it (the first solution) work on windows only? cause I see you installed windows-build-tools

piet.t · Accepted Answer · 2017-07-04 07:16:41Z

8

Before using npm install, change the package.json file dependencies, i.e.

"bcrypt":"0.7.6"

to

"bcrypt":"*"

edited Jul 4, 2017 at 7:16

piet.t

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answered Jul 4, 2017 at 6:04

Krishna Mohan

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Comments

David S · Accepted Answer · 2021-12-16 05:32:06Z

8

This happened to me as I was installing a package from github that had an older version of bcrypt as a dependency.

Just uninstall bcrypt to clear out the old version and install a new version:

npm uninstall bcrypt
npm install bcrypt

edited Dec 16, 2021 at 5:32

answered Jun 16, 2021 at 4:42

David S

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1 Comment

David S Over a year ago

I would like to note to keep an eye on the module that had the older bcrypt to ensure using a newer version didn't break anything. If it did, you may have to update that dependency, if possible.

Xpleria · Accepted Answer · 2017-11-02 13:28:37Z

7

This worked for me.

1) Delete any bcrypt folder in nodemodules folder, folder may have been created due to your repeated tries. (C:\Program Files\nodejs\node_modules\npm\node_modules)

2) run this code npm install --save bcryptjs e.g -

C:\Projects\loginapp>npm install --save bcryptjs

edited Nov 2, 2017 at 13:28

Xpleria

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answered Nov 2, 2017 at 12:49

Dholu

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1 Comment

HMaziad Over a year ago

Thank you! This worked for me. You need to delete old files!!!

DineshKP · Accepted Answer · 2017-07-18 00:28:02Z

4

In my case, npm rebuild alone didn't solved it. I also had to:

$ npm install -g node-gyp
$ sudo apt-get update
$ sudo apt-get install build-essential
$ npm rebuild

npm rebuild was trying to run make.

edited Jul 18, 2017 at 0:28

DineshKP

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answered Feb 10, 2017 at 20:31

thepanuto

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Comments

Andreas Bigger · Accepted Answer · 2018-12-29 18:38:27Z

3

It seems that bcrypt was depreciated at version 1.0.3 as it was susceptible to a wrap-around bug. NPM recommends installing version 2.0.0.

So, if you wish to save it, just run the command:

npm install [email protected] --save

answered Dec 29, 2018 at 18:38

Andreas Bigger

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Comments

Black Mamba · Accepted Answer · 2019-01-26 16:20:27Z

3

I'm using bcrypt with typescript

npm i --save @types/bcryptjs

Helped me solve the error above.

answered Jan 26, 2019 at 16:20

Black Mamba

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Comments

Radisav Savkovic · Accepted Answer · 2019-05-04 22:49:30Z

2

If none of these examples didn't work, you should try to downgrade Node version installed:

E.g from Node version 10 to version 9

npm install node@<version of node>

answered May 4, 2019 at 22:49

Radisav Savkovic

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4 Comments

joeytwiddle Over a year ago

I had trouble with node 12. I downgraded to node 10 and removed the node_modules folder. After reinstalling, it worked!

Radisav Savkovic Over a year ago

@joeytwiddle If even that won't work, the best solution is to install bcryptjs. It has zero dependencies and it's not influenced by OS used.But first it needs to be uninstalled bcrypt.

Marlon Dias Over a year ago

I was trying to run this github.com/komarserjio/notejam The express version over node 12. I've tried this solution downgrading to node v10 and it worked! thanks.

Radisav Savkovic Over a year ago

One more tip would be to use bcryptjs instead of bcrypt. Bcrypt has a problem with dependencies very often

spencer.sm · Accepted Answer · 2017-04-07 07:15:20Z

1

I'm running Ubuntu 16.04 on DigitalOcean (512 MB / 1 CPU, 20 GB SSD)

The following worked for me:

Scale your droplet up to the 1 GB RAM option ($10/mo)

Run each of the following commands (one at a time)

sudo npm install node-gyp -g
sudo apt-get install python
sudo apt-get install make
sudo apt-get install g++

Then try again with:
```
npm install bcrypt --save
```
Scale droplet back down to the 512 MB option

answered Apr 7, 2017 at 7:15

spencer.sm

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Comments

Rupesh kumar Sharma · Accepted Answer · 2017-09-06 06:09:08Z

1

You need to update the g++ compiler version in your linux system. To update the compiler just run the commands below:

sudo add-apt-repository ppa:ubuntu-toolchain-r/test

sudo apt-get update

sudo apt-get install gcc-4.9 g++-4.9

sudo update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-4.9 60 --slave /usr/bin/g++ g++ /usr/bin/g++-4.9


npm install bcrypt --save

edited Sep 6, 2017 at 6:09

user1600649

answered Feb 27, 2017 at 8:56

Rupesh kumar Sharma

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JoeTidee · Accepted Answer · 2019-04-07 23:03:37Z

1

I followed some course, and for me it didn't work. My mistake was:

var bcrypt = require('bcrypt.js');

But when I changed it to

var bcrypt = require('bcryptjs');

It worked!

edited Apr 7, 2019 at 23:03

JoeTidee

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answered Mar 22, 2018 at 18:47

Dijana

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Comments

Uthandi Karthi · Accepted Answer · 2019-12-16 06:41:29Z

1

Node Version vs Bcrypt Version
0.4 <= 0.4
0.6, 0.8, 0.10 >= 0.5
0.11 >= 0.8
4 <= 2.1.0
8 >= 1.0.3
10, 11 >= 3
12 >= 3.0.6

I had the same issue, after I installed the bcrypt particular version depends on your node version, it started to working.

In my case my nodeJS version was 12.3.0 , so I installed by specifying the version " npm install [email protected]."

I hope it will resolve the issue.

answered Dec 16, 2019 at 6:41

Uthandi Karthi

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Comments

Nick Malon · Accepted Answer · 2020-12-25 18:42:55Z

1

For me, it was because bcryptjs has a different name.

To fix it simply,

cd node_modules Go to node_modules folder on your application
ln -s bcryptjs bcrypt OR for Windows mklink /D bcryptjs bcrypt

This creates a link of bcryptjs directory to bcrypt.

answered Dec 25, 2020 at 18:42

Nick Malon

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Comments

Bipincr · Accepted Answer · 2021-09-17 10:30:01Z

1

if your issue didn't resolved. The below syntax will surely provide you a solution. To use bcrypt: var bcrypt = require('bcrypt'); To use bcryptjs. var bcrypt = require('bcryptjs');

answered Sep 17, 2021 at 10:30

Bipincr

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Comments

dev_yash_leo · Accepted Answer · 2025-03-26 18:55:04Z

Mostly useful when using pnpm as per new Next.js official tutorial.

Fixing bcrypt Module Error in Next.js Issue If you encounter the following error during the Next.js build:

Error: Cannot find module 'bcrypt'

This happens because bcrypt requires native dependencies that may not be compatible with your environment. A simpler solution is to use bcryptjs, which is a pure JavaScript implementation. Solution Follow these steps to fix the issue:

Uninstall bcrypt and Install bcryptjs

Using pnpm
pnpm remove bcrypt && pnpm add bcryptjs
Using npm
npm uninstall bcrypt && npm install bcryptjs

Update Import Statements In your project files, replace:

import bcrypt from 'bcrypt';

with:

import bcrypt from 'bcryptjs';

Restart and Build the Project Run the following commands:

pnpm run dev  # or npm run dev
pnpm run build

This should resolve the issue, as bcryptjs does not require native dependencies and works seamlessly with Next.js.

Fernando Moro · Accepted Answer · 2025-03-28 20:37:43Z

1

In my case, the error ocurred during build time, in a Next.js application. The command bellow solved the issue.

pnpm approve-builds

Regards,

answered Mar 28 at 20:37

Fernando Moro

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Comments

Michał Cesarczyk · Accepted Answer · 2025-04-14 06:32:43Z

1

I had this issue only when working with Docker and Nestjs, above solutions didn't worked. This one eventually helped:

in package.json:

"pnpm": {
    "onlyBuiltDependencies": ["bcrypt"]
},

in Dockerfile:

RUN pnpm install
RUN pnpm rebuild bcrypt

edited Apr 14 at 6:32

answered Apr 14 at 6:31

Michał Cesarczyk

113 bronze badges

1 Comment

Mr.Moe Apr 14 at 12:24

Welcome to StackOverflow. As you are a new contributor of knowledge, just a small feedback on your answer: As answers can pile up quite a bit, it's helpful to add the specifics about what solution you are talking about that didn't work for you. It makes your answer future proof. Also, I can't see the connection between the question and NestJs. It seems as a redundant info and might even show that the issue you had, was in some sort of different context than the context the question setting is in. Other than that, keep up the good work!

Rosemary · Accepted Answer · 2025-04-15 09:15:18Z

1

after pnpm i bcrypt, use pnpm approve-builds and choose bcrypt

$ pnpm approve-builds
√ Choose which packages to build (Press <space> to select, <a> to toggle all, <i> to invert selection) · bcrypt
√ The next packages will now be built: bcrypt.
Do you approve? (y/N) · true
node_modules/.pnpm/[email protected]/node_modules/bcrypt: Running install script, done in 2.9s

edited Apr 15 at 9:15

answered Apr 15 at 9:12

Rosemary

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Comments

Kyaw Min · Accepted Answer · 2016-11-01 07:48:38Z

0

I can't run any npm commads. so, I download from this link https://github.com/kelektiv/node.bcrypt.js create folder bcrype and use it. Solve now.

answered Nov 1, 2016 at 7:48

Kyaw Min

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Comments

user3399182 · Accepted Answer · 2018-07-20 16:04:08Z

0

For me the issue resolved by below steps: Nothing above solved my issue, 1) rm -rf node_modules in your project directory 2) rm package-lock.json 3) just check you have your package.json file now 4) npm install

Thats it, you will get bcrypt installed properly. Hope this helps.

answered Jul 20, 2018 at 16:04

user3399182

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RileyManda · Accepted Answer · 2019-01-03 19:24:29Z

0

This worked for me:

npm install bcryptjs

Then:

npm update

answered Jan 3, 2019 at 19:24

RileyManda

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codeepic · Accepted Answer · 2019-01-22 12:10:43Z

0

First delete bcrypt module from your node modules. Then try the below steps:

1) npm install node-gyp -g

2) npm install bcrypt -g

3) npm install bcrypt -save

This will definitely resolve the issue.

edited Jan 22, 2019 at 12:10

codeepic

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answered Jan 22, 2019 at 9:58

Manasi Roy

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2 Comments

carkod Over a year ago

"--save" not "-save". Also you can do npm install bcrypt -g --save

Mr Coder Over a year ago

this is not working for me node v8.16.1 npm 6.4.1 npm install node-gyp -g npm install bcrypt -g npm install bcrypt --save

Carl Gentleman · Accepted Answer · 2019-06-02 14:02:58Z

0

Be sure you are in a stable version of node too. If you are working with n, you only need to:

sudo n stable

And then again:

npm install bcrypt --save

And it worked for me.

answered Jun 2, 2019 at 14:02

Carl Gentleman

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Comments

Dev Yego · Accepted Answer · 2019-11-21 23:56:35Z

0

If this is an error you are facing when using something like Travis CI, consider using npm install --build-from-source.

answered Nov 21, 2019 at 23:56

Dev Yego

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Comments

Watercayman · Accepted Answer · 2020-01-22 00:18:24Z

0

The problem could be because there is no this essential

sudo apt-get install -y build-essential python

Then agregate bcrypt with if you're using npm:

npm install bcrypt
npm rebuild

or if you're using yarn:

yarn add bcrypt
yarn install
yarn build

edited Jan 22, 2020 at 0:18

Watercayman

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answered Jan 21, 2020 at 23:26

Hernán Pereyra

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