Free tools for developers, writers, and SEO.
Format JSON, decode JWTs, compress images, generate passwords — everything runs in your browser, nothing leaves your device.
// popular tools See all 20 →
// guides
JSON formatter guide: fix invalid JSON fast
A straight checklist for trailing commas, quotes, and common parse errors—meant for API payloads and config you paste into ToolBite’s formatter.
// developer tools
JWT Decoder Online — Decode JSON Web Tokens Free | ToolBite
Decode and inspect JWT tokens instantly in your browser. Read header, payload, and signature without sending data to any server. Free JWT decoder tool.
// guides
SEO slug best practices (with examples)
Length, separators, keywords, and mistakes that waste crawl budget—paired with ToolBite’s text-to-slug helper for quick clean URLs.
// text tools
Find and Replace Online — Free Text Tool | ToolBite
Find and replace text online free — paste any text, type what to find and replace, click Replace All. Instant results, 100% browser-based, no sign-up needed.
// guides
How to decode JWT safely (without trusting payload)
What a browser decoder can and cannot do, which claims to eyeball first, and why signature checks still belong on your server.
// text tools
Case Converter Online — UPPER, lower, Title Case Free | ToolBite
Convert text between uppercase, lowercase, title case, and more instantly. Free online case converter — paste text and transform in one click on ToolBite.
// image tools
Image Compressor Online — Free Image Compression Tool | ToolBite
Compress JPEG, PNG, and WebP images instantly in your browser. Free online image compressor — reduce file size without losing quality. Runs fully client-side.
// seo tools
Reading Time Calculator Online — Free Tool | ToolBite
Calculate the reading time of any text instantly. Free reading time estimator for bloggers, writers, and content creators. Accurate results on ToolBite.
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// free guides All guides →
Base64 Encoding Explained
Binary to text, data URIs, MIME, padding rules, and why Base64 is not encryption.
Read guide → DevJSON Formatter Workflow
Fix parser errors, normalize quotes, remove trailing commas, choose minify or beautify.
Read guide → DevJWT Decoder Safety
Inspect headers and payloads, read exp and aud, and never confuse decode with verification.
Read guide → SecurityPassword Security Essentials
MFA, managers, breach checks, rotation myths, and safer team sharing rules.
Read guide →