# http://decoder.jwtsecrets.com llms-full.txt

## Base64, URL & JWT Decoder
Base64 \| URL \| JWT Toolkit

# Free Online Base64, URL & JWT Decoder Tool

Use our free online decoder to decode Base64 strings, inspect JWT tokens, unescape URLs, translate hex data, and read binary text without leaving the browser. The all-in-one encoder and decoder suite keeps everything client-side so you can decrypt base64 online free while staying secure. It’s a base64 online decoder, jwt token decoder, url decoder online, hex decoder, and binary decoder in one.

Client-side onlyBase64 & Base64URLJWT claim insightsHex & binary decoderURL encode/decode helper

[Decode Base64, JWT & more](https://decoder.jwtsecrets.com/#tool) [Read the decoder tutorial](https://decoder.jwtsecrets.com/tutorial/)

## Why JWTSecrets?

- ✓Security scanners flag weak algorithms, missing exp, and risky claims.
- ✓Generate demo links for sharing test tokens with teammates.
- ✓Enterprise upgrades available for signature verification and policy checks.

JWT Decoder

Decode tokens locally and review header, payload, and time-based claims with instant checks—no data ever leaves your browser.

## All-in-One Online Decoder

This free online decoder supports multiple formats: **Base64 decoder**, **JWT decoder**, **URL decoder**, **Hex decoder**, and **Binary decoder**, plus handy **encoder** helpers. Decode, decrypt, and convert text or tokens instantly—no server processing, 100% secure.

Common combos: base64 online decoder, jwt token decoder, url decoder online, free base64 online decoder tool.

## Paste your JWT

ClearLoad Sample

Auto decode on paste


DecodeCreate Demo Link

### Header

Copy

```

```

### Payload

Copy

```

```

### Signature

Copy

```

```

#### Security Score

--

#### Claims Health

#### Meta

## Step-by-step JWT decoding guide

Learn how to inspect every component of a token, validate time-based claims, and avoid common bearer token pitfalls.

1. **1\. Inspect the header.** Confirm the algorithm (\`alg\`) and token type (\`typ\`). Avoid \`alg: none\` and double-check key IDs.
2. **2\. Review the payload.** Verify \`iss\`, \`sub\`, \`aud\`, and lifetime (\`iat\`, \`exp\`, \`nbf\`). Long-lived tokens are risky.
3. **3\. Validate context.** Ensure scopes and claims align with your API and that tokens are rotated according to policy.

[Jump to the full tutorial](https://decoder.jwtsecrets.com/tutorial/)

### Claim review checklist

- ✓ Verify token origin (\`iss\`) and intended audience (\`aud\`).
- ✓ Check for role or scope escalation in custom claims.
- ✓ Ensure clock skew is handled for \`nbf\` and \`exp\`.
- ✓ Rotate secrets frequently for HMAC-based JWTs.

### When to upgrade

Need deterministic verification or SOC2-compliant audit trails? Our enterprise platform validates signatures, enforces claim policies, and integrates with SIEM tooling.

[Request a quote](https://decoder.jwtsecrets.com/rfq/)

## How to Decode Base64 or JWT Tokens Online

1. Paste your Base64, JWT, URL, Hex, or Binary string into the decoder input box.
2. Select the decoding type: Base64, URL, JWT, Hex, or Binary.
3. Click “Decode” to view the decoded text or payload instantly.

## Decoder Examples

- **Base64 Online Decoder:** Decode text like `SGVsbG8gV29ybGQ=`.
- **JWT Token Decoder:** Inspect payload from `eyJhbGciOi...`.
- **URL Decoder:** Convert `%20` back to spaces easily.
- **Hex Decoder:** Convert hexadecimal strings to readable text.
- **Binary Decoder:** Read binary text to characters.

## JWT examples for common scenarios

Use these safe demo tokens to explore how claims change across B2C, B2B, and machine-to-machine flows. Click a card to load the token into the decoder.

[View the full examples library](https://decoder.jwtsecrets.com/examples/)

### Web login token

B2C

Standard HS256 token with short-lived session and email scope. Ideal for front-end testing.

Load example

### Service-to-service token

B2B

Issued by Auth0-style issuer with \`aud\` lock and short expiration to reduce replay risk.

Load example

### Mobile refresh token

Security

Shows a risky long-lived token so you can see how the analyzer calls it out.

Load example

## Latest JWT security updates

Stay informed about algorithm vulnerabilities, library CVEs, and how to harden your identity layer.

[Visit the JWTSecrets blog](https://decoder.jwtsecrets.com/blog/)

Token Hardening

### Stop using \`alg: none\` in staging environments

Developers still ship insecure defaults. Learn how to enforce RS256 or ES256 across all environments with lint rules and CI checks.

[Read insight](https://decoder.jwtsecrets.com/blog/alg-none-ban/)

Zero Trust

### JWT expiration strategy for modern SaaS

Balance user experience with security. We cover recommended TTLs, refresh rotation, and breach response playbooks.

[Read insight](https://decoder.jwtsecrets.com/blog/jwt-expiry-strategy/)

Engineering

### How to audit third-party JWT libraries

Use our checklist to confirm safe defaults, JWK caching, and algorithm agility in open-source dependencies.

[Read insight](https://decoder.jwtsecrets.com/blog/jwt-library-audit/)

## Need signature verification & policy enforcement?

Upgrade to JWTSecrets Enterprise to verify signatures against your key management system, enforce per-claim policies, and stream logs into your SIEM.

- ✓ Managed HSM integrations (AWS KMS, Azure Key Vault, GCP KMS)
- ✓ Custom claim validation (regex, allow lists, expirations)
- ✓ SOC2 Type II, ISO 27001, and GDPR compliant processing

Turnaround

We respond to RFQs within one business day with pricing, architecture notes, and integration steps.

### Request a quote

Name

Work email

Company

Primary use case

Submit request

## Frequently asked questions

Answers to the most common questions about decoding JWTs with JWTSecrets.

How to decode Base64 online for free?

Use our free Base64 online decoder tool to convert encoded text instantly.

Can I decrypt JWT tokens safely?

Yes, use our JWT online decoder—it runs locally and does not upload tokens.

Is there an online URL decoder and encoder?

Yes, the tool includes a full URL decoder and encoder for instant conversion.

Can this tool handle Hex and Binary decoding?

Yes, the decoder supports hex decoder and binary decoder formats for quick conversion.

Is there a free base64 online decoder tool?

Yes, you can use our free base64 online decoder tool right here.

Can I decode JWT token and verify online?

Use the jwt token decoder to inspect header and payload; verification happens client-side.

Try our all-in-one online decoder: Base64, JWT, URL, Hex, and Binary decoder in one place. Perfect for developers needing quick encoding and decoding online.


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## Base64, JWT & URL Decoder
Base64 \| URL \| JWT Toolkit

# Free Online Base64, URL & JWT Decoder Tool

Use our free online decoder to decode Base64 strings, inspect JWT tokens, unescape URLs, translate hex data, and read binary text without leaving the browser. The all-in-one encoder and decoder suite keeps everything client-side so you can decrypt base64 online free while staying secure. It’s a base64 online decoder, jwt token decoder, url decoder online, hex decoder, and binary decoder in one.

Client-side onlyBase64 & Base64URLJWT claim insightsHex & binary decoderURL encode/decode helper

[Decode Base64, JWT & more](https://decoder.jwtsecrets.com/sitemap.xml#tool) [Read the decoder tutorial](https://decoder.jwtsecrets.com/tutorial/)

## Why JWTSecrets?

- ✓Security scanners flag weak algorithms, missing exp, and risky claims.
- ✓Generate demo links for sharing test tokens with teammates.
- ✓Enterprise upgrades available for signature verification and policy checks.

JWT Decoder

Decode tokens locally and review header, payload, and time-based claims with instant checks—no data ever leaves your browser.

## All-in-One Online Decoder

This free online decoder supports multiple formats: **Base64 decoder**, **JWT decoder**, **URL decoder**, **Hex decoder**, and **Binary decoder**, plus handy **encoder** helpers. Decode, decrypt, and convert text or tokens instantly—no server processing, 100% secure.

Common combos: base64 online decoder, jwt token decoder, url decoder online, free base64 online decoder tool.

## Paste your JWT

ClearLoad Sample

Auto decode on paste


DecodeCreate Demo Link

### Header

Copy

```

```

### Payload

Copy

```

```

### Signature

Copy

```

```

#### Security Score

--

#### Claims Health

#### Meta

## Step-by-step JWT decoding guide

Learn how to inspect every component of a token, validate time-based claims, and avoid common bearer token pitfalls.

1. **1\. Inspect the header.** Confirm the algorithm (\`alg\`) and token type (\`typ\`). Avoid \`alg: none\` and double-check key IDs.
2. **2\. Review the payload.** Verify \`iss\`, \`sub\`, \`aud\`, and lifetime (\`iat\`, \`exp\`, \`nbf\`). Long-lived tokens are risky.
3. **3\. Validate context.** Ensure scopes and claims align with your API and that tokens are rotated according to policy.

[Jump to the full tutorial](https://decoder.jwtsecrets.com/tutorial/)

### Claim review checklist

- ✓ Verify token origin (\`iss\`) and intended audience (\`aud\`).
- ✓ Check for role or scope escalation in custom claims.
- ✓ Ensure clock skew is handled for \`nbf\` and \`exp\`.
- ✓ Rotate secrets frequently for HMAC-based JWTs.

### When to upgrade

Need deterministic verification or SOC2-compliant audit trails? Our enterprise platform validates signatures, enforces claim policies, and integrates with SIEM tooling.

[Request a quote](https://decoder.jwtsecrets.com/rfq/)

## How to Decode Base64 or JWT Tokens Online

1. Paste your Base64, JWT, URL, Hex, or Binary string into the decoder input box.
2. Select the decoding type: Base64, URL, JWT, Hex, or Binary.
3. Click “Decode” to view the decoded text or payload instantly.

## Decoder Examples

- **Base64 Online Decoder:** Decode text like `SGVsbG8gV29ybGQ=`.
- **JWT Token Decoder:** Inspect payload from `eyJhbGciOi...`.
- **URL Decoder:** Convert `%20` back to spaces easily.
- **Hex Decoder:** Convert hexadecimal strings to readable text.
- **Binary Decoder:** Read binary text to characters.

## JWT examples for common scenarios

Use these safe demo tokens to explore how claims change across B2C, B2B, and machine-to-machine flows. Click a card to load the token into the decoder.

[View the full examples library](https://decoder.jwtsecrets.com/examples/)

### Web login token

B2C

Standard HS256 token with short-lived session and email scope. Ideal for front-end testing.

Load example

### Service-to-service token

B2B

Issued by Auth0-style issuer with \`aud\` lock and short expiration to reduce replay risk.

Load example

### Mobile refresh token

Security

Shows a risky long-lived token so you can see how the analyzer calls it out.

Load example

## Latest JWT security updates

Stay informed about algorithm vulnerabilities, library CVEs, and how to harden your identity layer.

[Visit the JWTSecrets blog](https://decoder.jwtsecrets.com/blog/)

Token Hardening

### Stop using \`alg: none\` in staging environments

Developers still ship insecure defaults. Learn how to enforce RS256 or ES256 across all environments with lint rules and CI checks.

[Read insight](https://decoder.jwtsecrets.com/blog/alg-none-ban/)

Zero Trust

### JWT expiration strategy for modern SaaS

Balance user experience with security. We cover recommended TTLs, refresh rotation, and breach response playbooks.

[Read insight](https://decoder.jwtsecrets.com/blog/jwt-expiry-strategy/)

Engineering

### How to audit third-party JWT libraries

Use our checklist to confirm safe defaults, JWK caching, and algorithm agility in open-source dependencies.

[Read insight](https://decoder.jwtsecrets.com/blog/jwt-library-audit/)

## Need signature verification & policy enforcement?

Upgrade to JWTSecrets Enterprise to verify signatures against your key management system, enforce per-claim policies, and stream logs into your SIEM.

- ✓ Managed HSM integrations (AWS KMS, Azure Key Vault, GCP KMS)
- ✓ Custom claim validation (regex, allow lists, expirations)
- ✓ SOC2 Type II, ISO 27001, and GDPR compliant processing

Turnaround

We respond to RFQs within one business day with pricing, architecture notes, and integration steps.

### Request a quote

Name

Work email

Company

Primary use case

Submit request

## Frequently asked questions

Answers to the most common questions about decoding JWTs with JWTSecrets.

How to decode Base64 online for free?

Use our free Base64 online decoder tool to convert encoded text instantly.

Can I decrypt JWT tokens safely?

Yes, use our JWT online decoder—it runs locally and does not upload tokens.

Is there an online URL decoder and encoder?

Yes, the tool includes a full URL decoder and encoder for instant conversion.

Can this tool handle Hex and Binary decoding?

Yes, the decoder supports hex decoder and binary decoder formats for quick conversion.

Is there a free base64 online decoder tool?

Yes, you can use our free base64 online decoder tool right here.

Can I decode JWT token and verify online?

Use the jwt token decoder to inspect header and payload; verification happens client-side.

Try our all-in-one online decoder: Base64, JWT, URL, Hex, and Binary decoder in one place. Perfect for developers needing quick encoding and decoding online.