16 new tools shipped in the last 30 days

75 free browser tools that just work.

For code, content, SEO, AI workflows, and the everyday data tasks in between. Free, browser-only, no signup, nothing to install.

Type a task, format, or keyword — the library below filters as you type.

Stuck on something?

The task is probably one tool away.

Each card is a problem you’ve hit before, and the tool that fixes it. One click, no signup.

Your CSV needs to become JSON.

Convert it locally, with header mapping.

Open CSV to JSON

Your regex isn’t matching what it should.

Test patterns and see live highlights.

Open Regex Tester

Your meta tags need a final check before publish.

Preview the Google snippet and OG card.

Open SEO Meta Tag Preview

Your model returned broken JSON.

Extract and repair the messy output.

Open LLM JSON Repair

Just shipped

12 new tools in the library.

See full library

DNS Record GeneratorNewGenerate DNS records Security Headers GeneratorNewGenerate security headers CORS Header GeneratorNewGenerate CORS headers OpenAPI Swagger ViewerNewView OpenAPI and Swagger specs Folder Tree GeneratorNewCreate ASCII folder trees Text File MergerNewMerge text files for prompts PDF to TextNewExtract text from PDFs DOCX to MarkdownNewConvert DOCX to Markdown LLM Context TrimmerNewTrim text for LLM context Token Speed VisualizerNewEstimate LLM response speed LLM Cost CalculatorNewEstimate LLM token costs Prompt Diff CheckerNewCompare prompt versions

The library

Open a tool. Get the output. Move on.

Browse all tools

Developer & data44 tools

Format, decode, validate, generate, and convert data.

Timestamp ConverterConvert Unix timestamps to readable dates UTF-8 Encoder/DecoderEncode and decode UTF-8 text URL Encoder/DecoderEncode and decode URL text Text Base64 Encoder/DecoderEncode and decode Base64 text Special Character EscaperEscape and unescape text String HashingHash strings with SHA algorithms

Text & tokens11 tools

Count, compare, tokenize, and transform text quickly.

Word Cloud GeneratorGenerate word clouds from text Text SummarizerSummarize long texts quickly Gemini TokenizerGet Gemini Tokens for your text Character CountCount characters, words, and more Lorem Ipsum GeneratorGenerate placeholder text Reading Time CalculatorCalculate reading time for any text

SEO & publishing8 tools

Preview metadata, inspect domains, ship cleaner pages.

HTML CleanupClean and optimize HTML code Sitemap CheckerFind sitemaps and extract URLs Domain CheckerCheck domain availability Domain SuggestGet domain name suggestions Slug GeneratorGenerate URL slugs SEO Meta Tag PreviewPreview SEO snippets and tags

Content & creators9 tools

Small utilities for content, images, PDFs, and daily tasks.

AI Prompt WriterCreate better AI prompts IG Caption GeneratorGenerate Instagram captions Microcopy LibraryBrowse and copy UX microcopy Random Joke GeneratorGenerate random jokes Random Quote GeneratorGenerate random quotes Privacy Policy GeneratorGenerate privacy policy drafts

Writing3 tools

Rewrite, proofread, humanize, and improve copy.

AI HumanizerMake AI text sound human Grammar CheckFix grammar and spelling errors Sentence RewriterRewrite text in different tones

Recipes

Chains of tools for the work you actually do.

Most real tasks need more than one utility. These are the sequences that come up most.

Ship a blog post

Polish the draft, preview the snippet, build the slug.

Clean a messy data dump

Convert formats, format JSON, inspect the structure.

Debug an LLM response

Pull JSON out, validate it, then estimate the next call.

Why a utility drawer

A utility drawer, not another workspace.

Most tools live for the 60 seconds between apps — broken JSON, a model bill, a meta tag preview, a CSV row. No accounts, no dashboards, no “welcome aboard” tour.

Open any tool with one click
No accounts and no upload step
Runs in your browser, not on our servers

Paste in

Drop messy text, model output, files, URLs, or document content.

Try LLM JSON Repair →

Check fast

See validation, previews, token counts, diffs, schemas, and generated snippets.

Try Meta Tag Preview →

Copy out

Take the cleaned result back to your editor, CMS, terminal, or AI workflow.

Try CSV to JSON →

Keep moving

No dashboard, onboarding flow, or account gate for everyday utility work.

Try LLM Cost Calculator →